Class 12th Biology Lesson 01 | Objective Question Answer |Bihar Board Exam KE liye vvi

[00:04:09]Everyone is getting the sound, let's check it once with everyone.

[00:04:31]Ankit Kumar Good morning everyone. Good morning all of you.

[00:04:39]Today's class will be conducted by Wasim Khan Hi Sir, good morning to everyone.

[00:04:47]Come on, the sound of today's class is reaching everyone. If the sound does not go through then they will say that the sound is not coming through.

[00:05:01]Those who have not come to offline classes due to rain. No problem.

[00:05:14]Good morning everyone. Good Morning. So let me tell you that today's class will be your objective.

[00:05:31]That means it will remain objective. There are many objectives. Is more than 150. But we have brought 70 questions.

[00:05:39]70 questions which are VVI are asked every year in Bihar Board and there is a possibility of asking them every year. So we have brought these 70 questions. Ok? So in this you have to understand that the class which we had done behind this, Lesson One, Lesson One was about reproduction, what we had studied about reproduction in living beings, that is, the objective of Lesson One which is VVI, today we will clear it.

[00:06:13]We have brought 70 questions in this. There are more than 100 to 150 of them. There are around 170 questions on our application. That means we divided it into different sections and put it in the application. Like you go to the application and select the section Biology.

[00:06:29]So in Biology, I will show you Part One and Part Two.

[00:06:35]So 50-50 questions were put in four parts. That means approximately two years. So you clear Part One and Part Two from there. What it does is that you have asked questions over the years and all the questions that are likely to be asked have been put on the application. From that we have brought 50-70 questions so that they are asked every year and there is a possibility of asking them and there are such questions which are your VVI questions which will come. So we will pay attention here.

[00:07:02]We will also continue explaining this question. It will take some time. We will also continue to explain this. I will explain it to you.

[00:07:09]So let's start. Everyone will keep writing here. Whoever comments, you will comment and if you have any doubt, you will ask there. We will explain it to you there.

[00:07:23]All of you good morning. Whoever has any doubt will ask. We will keep watching the comments.

[00:07:28]Let's see the first question here. The first question is everyone write with explanation. He is saying that the first question is what is the maximum age of a parrot? Look, this is a question of age. There are 101 questions from age. 101 questions have been taken from age. After this you are taken from the gender. And sexual is derived from and then sexual is derived from. That is, questions have been taken from asexual and sexual.

[00:07:54]And these are 10 questions about your age. So out of this you have 30 questions, 30 questions and 10 questions are taken from age.

[00:08:01]So your question is what is the maximum age of a parrot? 90 years, 500 years, 25 years, 140 years. We told you that the lifespan of a parrot is 140 years. Because why does it happen?

[00:08:15]Because it is believed because it is believed the age of the parrot. It is believed that the lifespan of a parrot is 140 years.

[00:08:27]Therefore, you people also have to find out here what is the lifespan of a parrot? So it is 140 years. That means 40 years.

[00:08:35]Ok? You guys keep giving answers here.

[00:08:37]Whose opinion is right and whose opinion is wrong, you guys should also keep writing here.

[00:08:41]Like you don't have to write questions. One has to be written. If the answer is A then A has to be written. If it is B then it is B, if it is C then you have to write it like this. That means your answer is D.

[00:08:51]So you write D of one. You should keep writing on the page in this manner. The first K will become D. Then you have to keep writing the second one like A, B, C, D.

[00:08:58]And in the end you have to calculate how many of your questions are correct and how many are wrong. Ok? So what is the maximum age here? 140 years. We will keep explaining any question so that you people will understand it there.

[00:09:10]No one will have any doubt. Ok?

[00:09:12]Let us now discuss the second question here. He is saying that if we talk about these things. It is saying that which of these flowers bloom only once in its lifetime. Look, you understand it in simple language. In which of these will the flower bloom only once, that is, only once and then it will die.

[00:09:34]Not in bamboo, mango, blackberry, litchi, it will be in bamboo only once. Once upon a time it would be in bamboo. It comes in perennial form. It is just one year, for example, if there is a plant, a tree, and one year means one year in its entire life, it may be one year or two years, or it may be that it may be many years old. Ok? But suppose you wear a flower only once in your entire life for as many days as you live.

[00:10:04]Wear the flower only once. If it bears flowers, it will bear fruit. There will be seeds only if there is a flower. There will be fruit from there. Will wear flowers once. Will wear flowers once. So understand what will happen? It is a one-year-old plant.

[00:10:19]One year old. Now it becomes a one-year-old plant. It is an annual plant. But if someone is wearing the flower again and again.

[00:10:27]If it bears flowers repeatedly then it is perennial. Just like bamboo bears flowers only once in its lifetime.

[00:10:35]So what will happen? It will be one year old.

[00:10:37]And here it lives for many days.

[00:10:40]That is why it is also kept in the category of perennial.

[00:10:42]They live for a long time.

[00:10:44]So you are done with bamboo. Here you can keep both annual and perennial plants. The mangoes that grow here bear fruit many times. It bears fruit many times. So what will happen? It bears fruit many times.

[00:10:58]Now suppose it is perennial because it bears fruit many times. That is to say, he bears a flower once in his lifetime. Meaning it will flower and bear fruit only once. But what's in it? It happens many times. Mango must be grown in your house. What happened this year will happen next year too.

[00:11:16]Then it will happen the next year. It continues for years. This is the same process with blackberries. What happens this year continues next year as well. The same process happens with litchi also.

[00:11:23]But bamboo grows only once in its lifetime.

[00:11:25]So what will be your answer? Out of these, do you know in which flowers bloom once in a lifetime? So do you want to tell your answer here? I have to tell you about bamboo. What to tell? I have to tell you about bamboo.

[00:11:34]Ok? Let us talk further. The next question is. Let's see the next question. It is being said that vegetative propagation in ginger takes place through what? Ok?

[00:11:42]If we talk about vegetative, then the vegetative ones are through rhizome, tuber and fever bulb, see, in this you have to write a little explanation about the root, here you have to write a little explanation, come on, here you have to write rhizome, rhizome, by what means does this vegetative production happen, it happens through rhizome, but you have to write a little explanation, okay, write it, in ginger the underground stem is called rhizome. It is called rhizome.

[00:12:30]Which helps in vegetative propagation. It is helpful.

[00:12:44]You must have read this. We will understand here.

[00:12:46]Vegetative reproduction in ginger occurs through? So fever, bulb and tuber ribosome here. So from here you will get the option.

[00:12:54]Ok? So from this you have to choose rhizome. Here you have to choose rhizome.

[00:13:00]Your answer will be A. Why would it happen? A.

[00:13:02]Here, vegetative reproduction in ginger takes place through? So what will he say to you?

[00:13:07]Here the underground stem is called rhizome, which is vegetative propagation, it happens with the help of vegetative head, that is, if you ask by what means vegetative propagation happens, then your answer will be rhizome, okay, rhizome, the underground stem in ginger is called rhizome, which helps in vegetative propagation. Ok? In this way you can also write a small thing here.

[00:13:25]We will explain each question.

[00:13:27]Whatever easy questions there are, all the questions are easy. It is easy if you know. If you don't know then it becomes a little difficult.

[00:13:32]Ok? Let's move ahead. Let's move ahead. Let's take the second question here. Look, here you get the question, in which of the following the plant vegetative system is disorganized?

[00:13:40]Meaning it is not organized. It is disorganized.

[00:13:42]Okay, you write the answer to this also. Are disorganized.

[00:13:47]Among these you will find algae, fungi and bryophytes. Ok? Take all of these.

[00:13:52]You can take all of these.

[00:13:54]How? See. Occurs in algae.

[00:13:58]Occurs in fungi.

[00:14:01]Then there is the bryophyte. It is a bryophyte.

[00:14:07]You have to take it that way. See what happens in these plants and write it down. Let the body of these plants is thalloid i.e. the body of these plants is thalloid i.e. clearly divided into stem and stamens. clearly divided into stem and stamens. is divided into morphological forms.

[00:15:06]Ok? In this you have to understand in which of the following the plant body is disorganized? So it happens in algae, it happens in fungi, it happens in bryophytes, all three.

[00:15:19]Therefore, your answer will be all of these. All three are not to be applied.

[00:15:22]AB is not just to be filled. You have to fill each one.

[00:15:24]You have filled all the D options in these.

[00:15:26]Why? These plant bodies are present in algae, fungi and bryophytes. They are not organized, they remain disorganized. The body of these plants is thyroid. That is, what are the fever, the warp and the leaves, clearly? It is divided. Ok? In this way you people have to write it here.

[00:15:42]Ok? Everyone must have understood. Well, whoever has any doubt can stop the video and write it.

[00:15:47]But keep in mind that you all should answer the questions once. Then if you have any doubt, you can complete the video by watching it again and again.

[00:15:54]Keep writing together. Everyone will understand it well. Let us talk further.

[00:15:58]Plants that are not found in aquatic environments. Let's see whether they are found or not. There is a lot of difference between the two.

[00:16:05]You have to be a little careful, how many questions do children make mistakes in? So saying plants that are not found in aquatic environments.

[00:16:11]If they are found then it is fine but if they are not found then it is fine. So Hydrilla apatapa, lilies and your acacias.

[00:16:18]So write the answer to this also. You have to write the answer to this also.

[00:16:21]You have to write it after explaining it a little. Let's write you down. First of all, whatever your answer will be, it will become acacia.

[00:16:27]Ok? But whatever answer you get, it will become your acacia. Ok?

[00:16:32]But now we will explain it. Let's write Acacia Acacia is a desert plant which is called xerophyte or a terrestrial plant. It is a terrestrial plant.

[00:16:58]Ok? When it is a terrestrial plant then what is its use to aquatic environment? Okay, right? are not found in it. Okay, right?

[00:17:06]While those that are hydrilla are trapa and those that are lilies. There are aquatic plants.

[00:17:29]Aquatic plants.

[00:17:33]Ok? Understand further. Now he is saying that the plants are not found in aquatic environment. Aquatic plants that are not found in water. Water is not found in the atmosphere.

[00:17:42]So those which are not found in aquatic environment, then this will be your acacia. Everyone must have seen the acacia tree.

[00:17:48]From this, suppose Trapa Acacia is a desert or terrestrial plant which grows in aquatic environment. You can speak while there are hydralas. Hydrilla has grown. There are trapas and lilies and all these options of yours are telling you that they are found in aquatic environment. You all have asked the question that the plants which are found in aquatic environment are not found in the pond.

[00:18:09]So one option you should remember is Trapa or Hydrilla Lily, these are found here. But you cannot find it, you have come, the acacia has come. From the common Om tree, let's say, I can give you many more examples. Ok? You might have understood this much. We will see further questions here, let's move ahead. Everyone will keep writing.

[00:18:24]Binary fission is found. Then binary fission is found. Everyone knows it here. See, if we talk, binary fission occurs in amoeba. The binary fission that occurs in amoeba is called binary fission.

[00:18:35]Fragmentation occurs in paramecia. These are unicellular organisms. So A and B will be your answer. None of these. No.

[00:18:42]Your answer will be given here. You can apply both A and B. Because there is also amoeba and paramecium. It also undergoes binary fission. I had told you guys about amoeba.

[00:18:52]Told about Paramecium. All these organisms are single-celled organisms. It is a unicellular organism. There is amoeba, there is paramecium. This is yours, so what will be your answer? You have to write the answer here, you have to write the answer of both A and B here. Ok? Is everyone understanding? So amoeba and paramecians must be making sense to everyone.

[00:19:15]Ok? Let us explain this as well.

[00:19:17]No problem, write this also. Let us explain this here as well. Look, Amoeba, Amoeba, Paramecium, Paramecium, let's write this down in favourable conditions, Paramecium, in both organisms, in favourable conditions, asexual reproduction takes place by binary fission.

[00:20:20]Asexual reproduction occurs.

[00:20:24]Asexual reproduction occurs. Ok? You will understand that physon, which is present here in both the organisms Amoeba and Paramecium, is your sexual reproduction by fission in favourable conditions.

[00:20:37]So in which do you find binary fission? So asexual reproduction will be by let's say fragmentation.

[00:20:44]Asexual reproduction will occur. So in this we have discussed about sexual and asexual.

[00:20:50]In gender, you have to keep in mind that both male and female will be included.

[00:20:56]And if we talk about asexuality, then male and female will not be included in it. Single will come. What will come? Single will be in it. So that's why Amoeba is single. It is a unicellular organism. This is also your single-celled organism. Okay, right? So binary fission is found in what? So in amoeba, in paramecia. You tick this.

[00:21:16]Both A and B will be your answer.

[00:21:18]Ok? There are some things you have to keep writing.

[00:21:20]Wherever you have a problem, you have to comment.

[00:21:22]I will tell you.

[00:21:28]Suraj Gupta Radhe-Radhe Guru Ji.

[00:21:30]Radhe-Radhe to all.

[00:21:32]Well, if anyone has any doubt, he should speak up.

[00:21:35]Ankit Kumar, Wasim Khan, Suraj, whoever has any doubt should ask. We will tell you there. Let's all keep writing. If I have any doubt, I will tell you.

[00:21:57]Let us talk further. Let's look at the next questions. Here's what is possible in vegetative propagation? Now you will ask what is not possible in vegetative propagation? Now you will ask what is possible in vegetative propagation?

[00:22:09]So what is possible in this? Is your asexual reproduction possible or is your sexual reproduction possible or is both possible? So everyone knows about vegetative reproduction.

[00:22:17]Let us explain this also.

[00:22:19]You guys should write an explanation of this also.

[00:22:20]Ok? Write down the explanation. But before this, please write about asexual reproduction.

[00:22:27]Asexual reproduction. Here we will understand what is possible in vegetative propagation? So asexual reproduction is possible. Ok? How do you understand asexual reproduction here? So we will keep writing about vegetative propagation.

[00:22:39]All the vegetative propagation that happens is through asexual reproduction. It occurs by asexual reproduction.

[00:22:57]So what is possible here in vegetative propagation? So asexual reproduction. Ok? So I want to tell you that vegetative reproduction is dominant through asexual reproduction.

[00:23:05]So what do we say when it happens through asexual reproduction?

[00:23:09]He will be called asexual. Ok?

[00:23:12]Whatever your answer is here, you can put it in option A.

[00:23:14]Let us talk further. Let's talk about the second question. The apical spores in the plant are related to which of the following? That's a very good question.

[00:23:25]You have been asked these questions many times. Ok? Let us explain this further.

[00:23:31]You have to write here. Whatever answer you get in this will become your B.

[00:23:35]Bryophytes.

[00:23:41]Bryophytes.

[00:23:43]Ok? Now let us look into it. Ok?

[00:23:46]These are bryophytes.

[00:23:49]Everyone will keep writing. These are bryophytes so it will be easy for you to remember. I am explaining it so that it will be easier for you people.

[00:23:57]You will understand the definition a little bit.

[00:24:04]Life cycle and spores of bryophytes deals with the life cycle and spore dispersal of bryophytes.

[00:24:32]is related to percolation. Here we will understand that a plant has a spore apical and what is the primordial related to? So it doesn't happen with Shawal. It is not caused by fungus either. Keep in mind that it consists of bryophytes. This also does not happen.

[00:24:51]Tracheophytes to Bryophytes.

[00:24:53]Now you have to tell from bryophyte that the life cycle of bryophytes and which is related to spore dispersal. So what will be your answer? It will be bryophytes.

[00:25:02]Ok? So what will be your answer? Bryophytes. Let's move ahead. Let's move ahead. There are many questions. Let's take your next question. In which does reproduction by budding occur? Everyone knows that reproduction takes place through budding, this question has been asked many times in East, you do not have to write everything else, if it happens in East then your answer will be there, we will also explain it a little in East.

[00:25:21]Okay, see, in yeasts, yeasts and hydras, asexual reproduction takes place by budding method.

[00:25:53]Asexual reproduction occurs.

[00:25:58]Ok? In which of the following does reproduction take place by budding? In which is it said that reproduction occurs by budding? So in yeast.

[00:26:08]In which? In which does reproduction by budding occur? In yeast, you have to tell that it happens in both yeast and hydra. In both, asexual reproduction occurs by budding method.

[00:26:19]So in which does reproduction take place by budding? So what reproduces by budding? It is asexual. It is asexual. Will ask you questions about asexual reproduction. Janan asked who is Janan? Tell me. So you have to desexualize.

[00:26:33]Ok? It is possible that the question may be changed and given to you in a slightly different way.

[00:26:37]In which does reproduction by budding occur? So asexual reproduction occurs. But you were asked the question, in which does reproduction by budding take place? So your answer will be in yest.

[00:26:45]But if apart from this, Hydra was also given then you would have chosen Hydra option also.

[00:26:49]Ok? What happens in yeast and hydra by the process of budding? Asexual reproduction occurs. In which does reproduction take place by budding? So it happens in yeast.

[00:26:57]Which type of reproduction is by budding? So asexual reproduction. Which type of reproduction takes place?

[00:27:01]Asexual. Which one will be yours?

[00:27:02]becomes asexual. Ok? So you will keep writing small points. You guys will remember it.

[00:27:06]Ok? Let us talk further.

[00:27:08]Let's talk further. This is the 10th question. Produces penicillin.

[00:27:14]Everyone knows. Everyone uses this in medicine also.

[00:27:16]Let's produce penicillin. Let us explain this.

[00:27:23]So here you will have your metospore.

[00:27:26]Meiospore.

[00:27:28]Ok? Jospore A and C are given here. A and C you will apply it.

[00:27:35]Both A and C will happen. will become metospore. There will be meiospores. There will be no zoospore. Ok? Why won't it happen in future?

[00:27:42]We will discuss further. See how you should write in the explanation.

[00:27:50]Penicillium You have to write Penicillium fungus produces asexualasexual spores such as conidia and other spores such as conidia and other spores.

[00:28:37]generates. You have to understand in simple language. The penicillium that produces the mitospores you have to put in. An answer will be meiospore. Ok? Both look the same, the name is Mitospore Miosper. So you should remember this, you should remember this and you will understand it. Ok? Jaspor will not.

[00:28:56]Therefore your answer will be D.

[00:28:58]Hit both A and C here. Why? Which are your Penicillium cells.

[00:29:03]Penicillium fungi produce asexual spores such as your conidia and others which are spores.

[00:29:08]Okay, right? So in your answer produces penicillin then mitospore and your meiospore will be done.

[00:29:14]Ok? Well, this is becoming your explanation in a way.

[00:29:18]You should also see the definition, now it comes through what does vegetative reproduction take place in potato? Everyone knows.

[00:29:25]By whom is it done? Everyone knows this. The vegetative propagation that occurs in potatoes. Let us see when vegetative reproduction takes place in potatoes. So who does it happen through?

[00:29:32]Let's write the stem in the explanation through B Jar and competition, then you will write it in it, you will write it in the answer, you will write the stem, you will write the stem, you will see many options, write the stem here and you will understand, let's talk a little in the explanation, the modified stem of potato plants is i.e. tuber. The transformed warp is your tuber. It is tuber. Let's talk further. On top of which there are eyes present, that is, the buds of the tuber.

[00:30:44]Tuber buds can be written.

[00:30:50]You can write tuber buds. Gives birth to new plants. Gives birth to new plants.

[00:31:05]Vegetative reproduction in potato takes place through So in simple way you have to say that it happens through the warp i.e. it happens through the tuber. Potato has a modified stem of the plant i.e. tuber on which eyes are visible. That is, we call it tuber bud.

[00:31:26]Helps in giving birth to new plants. Gives birth to nine new plants.

[00:31:28]Everyone must have seen potatoes.

[00:31:30]Ok? So, what is the mechanism of vegetative reproduction in potato? So you have to say taunt. If taunt is not written then tuber will be written.

[00:31:35]Why? Because you will see the eye present above the warp which is on it, which we call tuber. Okay, right? Call it a taunt or a tubercle. Ok?

[00:31:44]Let's talk further. Your question comes next.

[00:31:54]Grafting a cotyledon to a cotyledon is rarely successful. Yes, grafting in a seed leaf is rarely successful.

[00:32:03]So comes grafting. If there is any mention of a seed leaf, I will tell you. So we will explain this. Let us explain this.

[00:32:13]One seed one cotyledon okay one cotyledon husband you are devoid of cambium one cotyledon husband is devoid of cambium okay you have to write further it is devoid of cambium there are more than one see how it happens you understand one cotyledon you understand cambium let us talk about all of them due to absence of cambium there is no secondary growth in monocotyledon plants. It does not happen.

[00:33:44]In which grafting is difficult. That means it is difficult. Done.

[00:33:59]Let's see more than one right that's right more than one means a lot of questions you can answer.

[00:34:10]Grafting in a cotyledon is rarely successful because the leaves of the cotyledon are devoid of cambium. The one with E will be your answer. How are they?

[00:34:20]Because due to the absence of cambium, secondary growth does not occur in monocotyledonous plants. There is no secondary growth which makes grafting difficult. Ok? This is how you have to respond. Let's move ahead. Everyone will keep writing further.

[00:34:38]Which of the following animals is ovo- viparous? See, this question was asked around 2013-14. You should ask this VVI question. Which of the following animals has ovo viparis? Ok? We will explain this also here.

[00:34:55]Let's write it here, whatever will happen, your C number option will be there, we will write rattle rattle snake here. I will explain now. I will continue to explain. Everyone will understand here.

[00:35:18]Ubo are vipires.

[00:35:24]These are the uveo vipers of which of the following animals? So there are rattlesnakes. Who are they? There are rattlesnakes which are given in your option C. Ok? How and why do they happen? Which is how they are? Gives. I have to tell you about those who keep eggs inside the body.

[00:35:48]Keep it inside.

[00:35:51]Where are the eggs kept in the body? Keep it inside.

[00:35:55]And the children take it out.

[00:36:08]Why would you call Rattle Surf outside?

[00:36:10]Why will we call it rattle surf? Here we will tell you in which animal rattle surf is in ovo vipers, in which of the following animals is it in ovo vipers, it is not in chicken.

[00:36:20]Platis, all this is not the same.

[00:36:21]Rattle is a snake. Why does rattle snake occur? Because ovo vipress are.

[00:36:25]Ok? In rattlesnake, the eggs are laid inside the body and where do the babies come out? They expel it from the body. Ok? So here if you get something related to Ovo Vipers then you have to kill the Rattle Snake.

[00:36:37]Rattle snake you have to put the answer here.

[00:36:39]Ok? Let us talk further. The next question is which flower is in the sequence in a flowering plant? So if you have any questions about the incident then write them down. I will keep writing its explanation for everyone so that you all will remember it well. Let's write the creation of a flower here, you can write the creation of a flower here.

[00:36:58]Creation of flower Now the creation of flower will be done here in option C.

[00:37:03]Which flower occurs in flowering plants? So your answer will be the formation of C flower. But we are explaining it, so you people have to understand it a little bit. Let us start with the beginning of reproduction in flowering plants. Reproduction begins with the formation of flowers. It is from construction.

[00:37:44]Ok?

[00:37:47]Which floral event occurs here in a flowering plant? So your answer will be the formation of a flower. You have to explain the formation of a flower.

[00:37:55]Reproduction in flowering plants begins with the formation of a flower. You have to write this here.

[00:38:01]Ok?

[00:38:04]If you have to write about the occurrence of a flowering plant, you can write it like this. If you get a question of two marks, you can write it also. Ok? I will keep explaining so that you people will not have any problem in explaining and what will happen is that you will understand and remember your question here also.

[00:38:18]You can remember all the options of the question by looking at the options.

[00:38:20]Now comes which of the following plants is bisexual?

[00:38:24]Look, if we tell you that the option will be A, B, then you will have to memorize it a lot.

[00:38:29]You will have to memorize a lot. So we are thinking that if we explain a little bit, what will happen to you with the explanation?

[00:38:34]Everything will be understood clearly here. Ok? Let us see which of the following plants is dioecious? Let us write the explanation here. Let us write the explanation here. If you think it will come in Dalingi or Dingi then your answer will be mustard. Ok?

[00:38:51]Comes in bisexual. But if we are giving an explanation then first we will understand the explanation and then we will move on to the answer. Ok?

[00:38:56]Come on, the mustard flowers, the mustard flowers, in the male flower, that is, you will see the stamen and in the female flower, that is, you will see the pistil.

[00:39:33]Ok? Both will be seen.

[00:39:38]Both reproductive organs are present in the same flower. They are found in the same flower. So what should we put here? Mustard. Ok? Let's see which plant is bisexual? So this will be your answer, mustard. How it will happen? Mustard flower has male parts i.e. stamen parts and female parts i.e. pistil parts. Both the reproductive organs are present in the same flower.

[00:40:21]Okay, right? So what do we say? Mustard: Which plant is the first one here? So what do you want to kill? Killing mustard. Ok? Everyone will keep writing so that you people will not face any problem here in future.

[00:40:32]Once you read it, you will remember it again.

[00:40:33]In which case the term "what happens is diaphoretic" is used.

[00:40:39]Ok? So let us know here. I will explain it here.

[00:40:45]Write one gender and you will get your answer.

[00:40:51]Let us explain. Your answer here is unisex. You can see it.

[00:40:57]But we will explain further. Ok?

[00:40:59]In which case the word that occurs is diathesis.

[00:41:01]So diocese is used.

[00:41:04]Ok? So let's look at what is diasis. This word is used when the male and female plants are separate. Are different. That is, if we talk about the condition in which the word diathesis occurs, then when is the word diathesis used? This is the word in which state the word diathesis is used, then it is in one gender.

[00:42:18]Why? Because when is the word diathesis used?

[00:42:24]When you have males, that is, when the male and female plants are separate. That is, when the male and female plants are separate, then we will use this term.

[00:42:33]Ok? So what will be your answer? A penis will be here. Ok?

[00:42:38]Let's write further. You have to keep writing down all the questions.

[00:42:41]Notes are called eyes.

[00:42:45]In which of the following a new plant is formed? Well, there was a question before this. It was like this.

[00:42:50]Everyone will write.

[00:42:53]Notes which is Notes which is Notes which is Notes is called eye which is formed as a new plant in which of the following? Notes ok eye says. So in which one is it made?

[00:43:04]We have read this before. Let's call the notes eyes.

[00:43:09]Tell me what do you say? Notes are called eyes. So the notes are called eyes. So first let us tell you so that you do not face any problem. Now tell me something related to the eye, tell me in which tuber it grows? In potatoes. Ok? So if we talk about your notes here, your answer will be potato. But we explain. We have to explain here. Let's keep writing. The internodes present on the potato tuber, i.e. the nerves present on the potato tuber, are called eyes. It is called the eye. It is called notes, that is, it is called eyes. Will you say notes or if not, what will you say? It will be called eyes. You can understand this.

[00:44:08]Notes will say eyes. Ok?

[00:44:13]Where a new plant emerges. You will understand the meaning here that if notes are called eyes then in which does a new plant grow? Where does it come out? It is found in potatoes. So, the part of the potato from which it grows, a new plant is formed from that part. So that is the eye.

[00:44:40]What happens? That is the eye. Where it comes from. You must have seen that everything is sown after harvesting. Wherever it grows, we cut it from there and sow it. I do farming. So the nodes present on the potato tuber are called eyes. On which you have festival treaty.

[00:44:54]What happens where? A new plant emerges. A new plant emerges from the same place. So the notes are called eyes. Where are they found? In which plants are they found? Tell me.

[00:45:01]You can find them in potatoes. Ok?

[00:45:04]You will get to see it. This will become clear from what is done in potato cultivation.

[00:45:06]Let's talk further.

[00:45:08]Motile spores are called mobile spores.

[00:45:11]Everyone knows that motile spores are called mobile spores.

[00:45:13]If we talk about the answer, then your answer will be given here, it will be jospers.

[00:45:19]Ok? It will be jospers. But we have to explain a little bit so that you people can understand the explanation here. Let us consider the spores which are motile asexual spores containing vacuoles.

[00:45:46]Asexual is asexual spores. Understand here what is called a mobile spore? So they are called zoospores. Zoospores are motile asexual spores containing cusps.

[00:46:01]So what will we say?

[00:46:03]Zoospores will speak. So there are mobile spores.

[00:46:04]Mobile spores are mobile. Ok? Everyone here must have understood.

[00:46:09]Everyone is writing.

[00:46:11]Cuscuta zoospores are motile asexual spores containing cuspids.

[00:46:19]Everyone will keep writing so that you people will not face any problem in future. Write further.

[00:46:24]Choose the correct one from the following. Everyone must be aware of the existence of sponges like Penicillium and Gemmules in Sewall, Corneria in Hydra.

[00:46:33]Let us explain it anyway.

[00:46:38]Here I told you about the bud of Hydra so that you people will not face any problem. It will be easier for you while explaining.

[00:46:45]Let us look at Hydra, which has a bud.

[00:46:56]Ok? This is your word through asexual reproduction.

[00:47:11]Asexual reproduction is asexual reproduction. Understand the meaning, in Hydra, asexual reproduction takes place through the bud i.e. bird.

[00:47:24]In which does it happen? In Hydra. So I have asked you to make the right choice. Sponge juice spores is wrong. Yours is wrong. The one with E is correct. Why bud formation in D. Hydra?

[00:47:33]Hydra reproduces asexually through buds which are.

[00:47:35]Ok?

[00:47:38]You must have studied sexual and asexual very well, so we hope you will be able to answer all the questions. So these are a lot of questions from asexuals and sexuals. There are around 20 30 questions from asexuals. Then we will move on to gender. Ok?

[00:47:51]Let's all keep noting this down.

[00:47:54]Whoever has a problem will tell me. Let's take a look at the comments.

[00:48:01]Guddu Yadav Hello Hello Bubble Mar Miss Shaheena Shahzadi 17 ka D ok. You guys keep writing and you guys keep adding.

[00:48:21]Good morning everyone. All of you will keep connecting whatever problem there is.

[00:48:26]After this we will bring subjective. First let us do today's thing.

[00:48:30]First objective and then subjective will also come. Whatever chapter it is, we will get it completely cleared. Then we will bring its objective and then we will bring its subjective along with it. So the class becomes quite long. That's why we have made short ones and we are bringing in the most important things in the lesson because these are revision classes. So what happens in revision classes is that we do only those things which are necessary and what happens in revision is that whatever we have read, we read it again, so what is that revision? Meaning, understand that we are copying him. Okay, right? So let's talk here. Let's talk about the next question. Ok? Let us come to know that grafting cannot be done in sugarcane because what happens here is that there are vascular bundles, that is, they are scattered. Phloem is located inside the xylem.

[00:49:23]Sugarcane plants are tender. It is unable to tolerate the moon. The sugarcane plants here are lotuses. Ok? Grafting of eek cannot be done. You know there was a question about grafting.

[00:49:36]Let us explain it so that you can understand it completely. Ok?

[00:49:42]Here you will find scattered vascular bundles.

[00:49:44]Therefore grafting does not occur. Still we explain that sugarcane is a monocotyledonous plant. In which the vascular bundles are scattered. Are scattered.

[00:50:30]And the cranium that is present in it is not there.

[00:50:38]And it does not have cambium. So grafting cannot happen in Eck because what are the vascular bundles? Are scattered.

[00:50:55]Okay, right? So a cotyledonous plant has scattered vascular bundles and does not have the crambium.

[00:51:03]Ok? So what happens to you is that there is no grafting here. Ok?

[00:51:06]So grafting cannot take place in sugarcane.

[00:51:08]Why? Because what are vascular bundles? Are scattered. Ok? Let's move ahead. Let's talk further. Mint propagates vegetatively.

[00:51:17]Mint is what propagates vegetatively. So everyone will know about the sub-ground layer and the sub-ground layer and the root woman and the rhizome. We explain further here. Ok? Okay, in this you have to understand a little, you do n't have to understand much, let's go to the subterranean layer, option number A which is subterranean, from this we see that vegetative propagation takes place in mint, so subterranean layer, your answer will be there, but we will explain, you guys can also keep giving your answer along with it, okay, vegetative propagation in mint takes place through absorbent or subterranean subterranean. It happens through the medium.

[00:52:40]So if you get a question about mint vegetative propagation, your answer will be internal. But I have to tell you inner woman. Vegetative propagation in mint occurs through abscission or endosperm.

[00:52:53]No, it happens through him. So in this vegetative propagation will happen to you in this one and propagation exploiter you are exploiter or. So in this vegetative propagation is your answer. If instead of giving you this subterranean, you were given vegetative propagation instead, then you would have applied for vegetative propagation from here. Vegetative propagation happens through absorbent or it happens subterranean, so if your mint was vegetative propagation then you have put subterranean in it but if it was not given in its place then you would have had vegetative propagation in the option, okay then your answer would have been vegetative propagation, okay but in this the option is given subterranean, so many people have such a question for which you have the option here, we have told you that yes, it has an answer, but like in the world, if vegetative propagation happens in mint, instead of saying this, if vegetative propagation is written in its place then there will be a problem. That's why we are explaining it to you so that you don't face any problem.

[00:53:49]It is possible that if another option is given in its place then only you can tick there. What is the vegetative substance in Sapodina? It is an internal woman. If this option is not given then you can plant it through vegetative propagation.

[00:54:00]Ok? Let's talk further.

[00:54:03]Everyone will keep writing. The sock is placed on the stalk. The sock is placed on the stalk. These are the trees planted in this way.

[00:54:12]On what will the fruits of the planted tree depend? When he was telling you about planting, this was the question you asked.

[00:54:17]Ok? Let us explain. Let us understand this.

[00:54:25]Let's circle it here now so everyone will understand. Is the credit okay? Let us explain further.

[00:54:33]Credit is the upper part. First we will understand the credit i.e. the upper part. The sap which is the upper part of the flower and determines the qualities of the fruit.

[00:55:03]Determines. The credit is applied to the stem.

[00:55:07]So on what does the fruit of the tree thus transformed depend?

[00:55:13]So it depends on the credibility. depends on what? On credibility. Credit is the upper part. The credit is the upper part.

[00:55:22]So the upper part. So the upper part is the saakh i.e. the flower. whose? Of the flower.

[00:55:27]And what happens to the fruit determines its properties. Therefore your answer will be done and you will get credibility. So many go options will be given here. If he removes the option, what will he give in return? You can understand this completely from the explanation.

[00:55:40]So you guys keep writing the explanation.

[00:55:41]You will not face any problem later on.

[00:55:44]Ok? Let's move ahead. Now here comes the question, what is a genetically identical organism called?

[00:55:53]If we look at that organism from both its size, shape and genetic point of view, what would we call it? Everyone will know.

[00:55:58]Let us explain here. Let us explain.

[00:56:08]We discussed this here yesterday. Here you have the answer clone. You have option A.

[00:56:15]Your clone will be the answer here.

[00:56:17]If asked what is the name of similar organisms in terms of size and genetics? So you have to clone it. How to clone?

[00:56:24]Because you have to tell you that the offspring produced from asexual reproduction is the offspring produced from asexual reproduction is the offspring or which are exactly identical to their parent. which are exactly identical to their parent. They are exactly the same as the parent. It is called a clone. It is called a clone. Will you understand?

[00:57:27]What are morphologically and genetically similar organisms called? So they call it clone. Done.

[00:57:28]If the question number two comes to your mind, what is called a clone?

[00:57:33]So what do you have to tell? What do we call the offspring produced by asexual reproduction that are exactly identical to their parents?

[00:57:40]says the clone. Ok? So what are morphologically and genetically similar organisms called? says the clone. Here is the simple definition. It has to be told in the same way.

[00:57:48]Offspring produced by asexual reproduction that are exactly like their parents Are similar.

[00:57:52]Tell me what should we call him? says the clone.

[00:57:54]Ok? Everyone must have understood this by now. We will proceed in this manner here.

[00:57:59]Let us see how reproduction takes place in amoeba under favourable conditions.

[00:58:04]Everyone knows how it happens. The answer is given to you here.

[00:58:08]Ok? How many people would have posted this Dikkhandan in your answer?

[00:58:10]How many people have been accused of this? No problem, you guys understand the explanation. After this you have to tell the answer. Otherwise something will go wrong here.

[00:58:17]Let us write you have to write favorable conditions under favorable conditions amoeba after nuclear division amoeba divides into two equal parts. It gets divided into parts.

[00:59:17]So how does reproduction occur in amoeba under favourable conditions? So everyone knows that it happens through bifurcation.

[00:59:24]If Paramecium comes in its place, in this way if you get the name of any bacteria, then in favourable conditions if you are asking about Amoeba, Paramecium, then in this way you will be asked the question, your answer will be Devkhandan.

[00:59:40]What does the nucleus of an amoeba do after division under favourable conditions? So what are two equal parts? They increase.

[00:59:45]Like amoeba is here and its nucleus is here.

[00:59:50]Ok? What does it do now?

[00:59:52]Divides into two equal parts. So you must have seen that it gets divided into two parts here and then what do they make? Let's create an amoeba there. Ok? So what will be your answer here? This will happen by binary fission. Ok? Come on, all of you will keep writing further. Next is an example of a rhizome. Everyone knows the example of rhizome. So Nemo is not there.

[01:00:11]What is in the rhizome? There will be potatoes and ginger. I have given you potato ginger, how many people must have written it, first I will explain it, everyone will understand, let's write ginger, ginger potato has not been given, then potato also is an example of rhizome, the same one which you have, from where we cut the seed, we take out the eye from there and sow it, write ginger, the most prominent example of rhizome or rhizome or rhizome. The most prominent example is. I have to tell you this in ginger.

[01:01:03]If someone asks you to give an example of rhizome, then ginger is the name. Ginger is the most prominent example of rhizome. He will ask you about rhizome or root in ginger. If your rhizomes are also asked, what will you plant? Ginger and rhizome also asked for ginger. Ok? If you ask for rhizomes or if you ask for rhizomes, then ginger is very easy to get from here. Ok? There were 25 questions here. There are 70 questions. You guys add some of this. See how many questions you have answered so far. Let's see here.

[01:01:41]Guddu Singh Hello Sir Good Morning Dheeraj Kumar Bihar Good Morning Sir All of You Good Morning Everyone Let's all of you, if anyone has any doubt in this, please comment and we will tell you, we will try to explain it as much as possible so that you all remember that this is an example of rhizome.

[01:02:08]So all of you here know what is its example? No one will have any doubt.

[01:02:12]Everyone will be clear till here. Let's move ahead. There are 70 questions in it. So try to solve almost all the questions or at least 50 questions and 50% of the questions.

[01:02:22]We will get you to do 50% again tomorrow so that you can memorize it little by little. Ok? So, we are following this lesson from reproduction in living beings.

[01:02:29]If anyone has any doubt, he can ask a question. Will comment. Here comes the example of Kalikapan.

[01:02:35]See, then you were asked an example of budding, bud planting, a bud comes out and an eye is formed, only then what will happen to it, we cut it and plant it, budding is an example of budding, everyone knows which one it is, but you have to explain, everyone will write vegetative reproduction, everyone will write vegetative reproduction or artificial in a plant, this artificial vegetative propagation in a plant is a method of vegetative propagation, okay, the method of budding, which is vegetative reproduction, so vegetative reproduction is a method of artificial vegetative propagation in plants, then your answer will be A, this is artificial vegetative propagation, that is, it is artificial, which method, it is artificial, which we had explained completely in yesterday's class, bud planting is your vegetative reproduction. Ok? Let me tell you that this is a method of artificial vegetative propagation in plants.

[01:04:11]These are your artificial methods. Ok? Everyone will keep writing. Let's talk further.

[01:04:18]In a fungus called Penicillium, asexual reproduction mainly takes place through which structure? If you go back 2 years or 3 years, you will find these questions in the question bank. Ok? Let us explain here. We will tell you the answer here. Conedia so that you will not have any doubt. Please mix it.

[01:04:37]Conedia we will explain. You guys have to answer here before the explanation while explaining.

[01:04:44]Now we will see you here in the end. Let us say in Penicillium fungus, coni u4 codio4 are formed on the spores which are called spores which are called spores.

[01:05:40]Which structure do you think is the main mechanism of asexual reproduction in a fungus called Penicillium? So I have to tell you about conidia, your answer is already there but I have to tell you that the Penicillium fungus, the Penicillium fungus, has conidiophores, on the conidiophores, one of your conidia is formed which are scattered, so if it comes from the name penicillium, then you have to apply the conidia.

[01:06:05]Whenever you are asked through which structure does asexual reproduction called penicillin take place? So you have to select the answer here Konediya. I have to tell you about penicillin. Ok? So here your answer will be Kondia. Ok? Let's talk further.

[01:06:19]Which of these absorb oxygen present in water while floating? Everyone knows.

[01:06:25]All of you please tell me this first. See what happens in this? I had told you the story of the terror of Bengal, what happened was that water hyacinth was planted there for the Shobha show and when it was covered all around, there was a shortage of oxygen, when there was a shortage of oxygen, then when an investigation was done to find out what the problem was, it was seen that water hyacinth is absorbing oxygen in the salty water, hence the oxygen is getting depleted, so what was done with the water hyacinth, an attempt was made to remove it from there, hence an attempt was made to remove everything from there, it was thrown all around, it spread almost towards us and everyone, so it was absorbing the oxygen from there.

[01:07:00]That's why where was it? It was in Bengal and as it increased, it is sucking oxygen. That is why it was named the Terror of Bengal.

[01:07:05]What happened to him? Terror of Bengal.

[01:07:08]So if you are asked which of these absorbs oxygen even while swimming in water. There will be salty water in the floating water, it will float and will be pulled into it. So who will pull it? Hyacinth will pull it. Who will pull it? Hyacinth will pull it. That means you will understand in a simple way what water hyacinth does? If the water is running in salty water then there is no problem. So the words are burning.

[01:07:26]But it will float in stagnant water and while floating it absorbs the oxygen present in the water.

[01:07:30]Where is the story of Hyacinth from?

[01:07:32]He is from Bengal. This is called the terror of Bengal. He is called the terror of Bengal. He is a terrorist. He is called the terror of Bengal.

[01:07:45]Tell me what is it called? It is called terror. This is a terrorist. Why does it absorb oxygen? Ok? So why wherever there is water hyacinth?

[01:07:54]All living beings will die there.

[01:07:57]Whatever living creatures there are in the water, they will not be able to get oxygen, what else will they do?

[01:08:00]Everyone will die. Now if he takes this then what will happen to all the other living beings? Ok? So before explaining it to you, I have already told you this.

[01:08:06]You can write it yourself in this way in explanation.

[01:08:08]Ok? Let us move ahead.

[01:08:11]Let's look at number 29. Here reproduction takes place through gamma. What purpose does Gama serve? You guys interpreted it. If you think something is easy then you should understand it.

[01:08:22]You guys will keep writing about what does not seem easy. Ok?

[01:08:24]So here we go Gemma. We will write some bryophytes some bryophytes happened.

[01:08:45]As the liver says.

[01:08:59]So in this you can apply this option C in Bryophytes. Ok? But you guys keep writing so that you will understand. See what happens in this?

[01:09:11]Everyone read about Marchesa.

[01:09:16]Like in bryophytes, reproduction takes place by gamma within gamma within gamma spore, then what kind of reproduction takes place? It is asexual.

[01:09:55]Asexual reproduction occurs. So, in this reproduction takes place through gamma, which is the case in some bryophytes.

[01:10:06]Some bryophytes have what are called liver sacs. And in bryophytes like Marchantia, the gemma is inside the cup. Now the door inside the Gamma cup is yours inside the Gamma cup. So you will be asked, tell me what happens inside the phlegm by Gemma? So asexual reproduction occurs. What happens? Asexual reproduction occurs. So here also he will ask questions like this and will leave you and pick you up from this. Ok? So let me keep writing the explanation for you.

[01:10:32]Let's look at the next question here.

[01:10:35]Plants that reproduce by spores, such as mosses and ferns.

[01:10:37]In which group are they generally placed? So everyone knows this. Write its explanation. These bastards keep asking questions several times.

[01:10:43]Ok? Write.

[01:10:45]In this, let us first write your explanation.

[01:10:47]After this we will tell you what will be its answer. The rest of the people might have installed it.

[01:10:53]See, plants without flowers and seeds are called cryptophages. They are called cryptogams.

[01:11:28]So your spore-producing plant, the meat fern, is commonly placed in what? It is placed in the cryptogams.

[01:11:34]So what are called cryptogams? So where do you keep a plant without flowers and seeds? Tell me. In cryptogams, that is, it is called cryptogams. Ok? That's the question. You guys write it here. And this is 70 questions. Next we will bring it here in class. When I bring part two video, I will bring class there tomorrow, then I will tell you further. Today's question is 30 questions. We will bring the next remaining questions from this tomorrow.

[01:11:58]So today's 30 questions. You guys see how many of the 30 questions have you answered correctly? How much wrong did you guys do there? You guys please match the answers.

[01:12:06]Tomorrow we will bring 40 questions. Will bring part two.

[01:12:11]Whatever problem you have there, please ask again.

[01:12:14]Come on everyone, please comment as much as you can. Ok? So tomorrow we will bring further questions. Will come again from 6 to 6:00. It's been a long time since 6 to 7. The class lasts for one hour. Whatever questions are there in it, we will bring them next time. It's not a marathon that will last very long.

[01:12:28]So let's take a break on this and meet again tomorrow after a short break.

[01:12:31]Hmm.