NEET Exam > NEET Questions > Which statement is correct for apomixis?a)Wit...
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Which statement is correct for apomixis?
- a)Without fertilisation diploid embryo forms
- b)With fertilisation diploid embryo forms
- c)Without fertilisation haploid embryo cell form embryo
- d)With fertilisation haploid embryo cell form embryo
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Which statement is correct for apomixis?a)Without fertilisation diploi...
Apomixis is a type of asexual reproduction in plants where seeds are produced without fertilization. The statement "Without fertilization diploid embryo forms" is correct for apomixis. Let's break down why this statement is true:
Embryo Formation:
- In sexual reproduction, the fusion of gametes (sperm and egg) leads to the formation of a diploid zygote which develops into an embryo.
- In apomixis, the embryo develops without the fusion of gametes. Instead, the embryo develops from a diploid cell in the ovule called the nucellus or from a diploid cell in the embryo sac called the egg cell or the synergids.
Types of Apomixis:
- There are different types of apomixis, but most involve the formation of a diploid embryo without meiosis (reduction division) and fertilization.
- The most common types of apomixis are gametophytic apomixis and sporophytic apomixis.
Gametophytic Apomixis:
- In gametophytic apomixis, the embryo develops from a haploid cell in the ovule that undergoes mitosis (cell division) to form a diploid embryo.
- The haploid cell that gives rise to the embryo can be the egg cell, the synergids, or a cell in the central cell.
- The diploid embryo has the same genotype as the mother plant and is a clone of it.
Sporophytic Apomixis:
- In sporophytic apomixis, the embryo develops from a diploid cell in the ovule that undergoes mitosis to form a diploid embryo.
- The diploid cell that gives rise to the embryo can be the nucellus or a cell in the embryo sac.
- The diploid embryo has a genotype that is a mixture of the mother plant and the father plant, but it is still a clone of the mother plant.
In conclusion, the statement "Without fertilization diploid embryo forms" is correct for apomixis because the embryo develops without the fusion of gametes and from a diploid cell in the ovule or the embryo sac.
Embryo Formation:
- In sexual reproduction, the fusion of gametes (sperm and egg) leads to the formation of a diploid zygote which develops into an embryo.
- In apomixis, the embryo develops without the fusion of gametes. Instead, the embryo develops from a diploid cell in the ovule called the nucellus or from a diploid cell in the embryo sac called the egg cell or the synergids.
Types of Apomixis:
- There are different types of apomixis, but most involve the formation of a diploid embryo without meiosis (reduction division) and fertilization.
- The most common types of apomixis are gametophytic apomixis and sporophytic apomixis.
Gametophytic Apomixis:
- In gametophytic apomixis, the embryo develops from a haploid cell in the ovule that undergoes mitosis (cell division) to form a diploid embryo.
- The haploid cell that gives rise to the embryo can be the egg cell, the synergids, or a cell in the central cell.
- The diploid embryo has the same genotype as the mother plant and is a clone of it.
Sporophytic Apomixis:
- In sporophytic apomixis, the embryo develops from a diploid cell in the ovule that undergoes mitosis to form a diploid embryo.
- The diploid cell that gives rise to the embryo can be the nucellus or a cell in the embryo sac.
- The diploid embryo has a genotype that is a mixture of the mother plant and the father plant, but it is still a clone of the mother plant.
In conclusion, the statement "Without fertilization diploid embryo forms" is correct for apomixis because the embryo develops without the fusion of gametes and from a diploid cell in the ovule or the embryo sac.
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Which statement is correct for apomixis?a)Without fertilisation diploi...
Apomixis is a type of asexual reproduction which occurs without fertilization, and it is present in plants. Apomictic parthenogenesis is an example of apomixis which doesn't involve meiosis. In this, the egg cell reproduces with the help of mitosis and without fertilization, it grows into an embryo. It mimics sexual reproduction in a way that its egg fertilizes direct into an embryo from the nucleus.
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Which statement is correct for apomixis?a)Without fertilisation diploid embryo formsb)With fertilisation diploid embryo formsc)Without fertilisation haploid embryo cell form embryod)With fertilisation haploid embryo cell form embryoCorrect answer is option 'A'. Can you explain this answer?
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Which statement is correct for apomixis?a)Without fertilisation diploid embryo formsb)With fertilisation diploid embryo formsc)Without fertilisation haploid embryo cell form embryod)With fertilisation haploid embryo cell form embryoCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which statement is correct for apomixis?a)Without fertilisation diploid embryo formsb)With fertilisation diploid embryo formsc)Without fertilisation haploid embryo cell form embryod)With fertilisation haploid embryo cell form embryoCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which statement is correct for apomixis?a)Without fertilisation diploid embryo formsb)With fertilisation diploid embryo formsc)Without fertilisation haploid embryo cell form embryod)With fertilisation haploid embryo cell form embryoCorrect answer is option 'A'. Can you explain this answer?.
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Solutions for Which statement is correct for apomixis?a)Without fertilisation diploid embryo formsb)With fertilisation diploid embryo formsc)Without fertilisation haploid embryo cell form embryod)With fertilisation haploid embryo cell form embryoCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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