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Lampbrush chromosomes occur during
[1996]
- a)prophase of mitosis
- b)diplotene of meiosis
- c)metaphase of meiosis
- d)interphase
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Lampbrush chromosomes occur during[1996]a)prophase of mitosisb)diplote...
Lampbrush chromosomes are highly elongated bivalent chromosomes of diplotene stage, which are held together by chiasmata and have a large number of lateral loops for rapid transcription.
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Lampbrush chromosomes occur during[1996]a)prophase of mitosisb)diplote...
Explanation:
Lampbrush chromosomes are the giant chromosomes found in oocytes of most animals, especially amphibians and birds. They are visible during the diplotene stage of meiosis I in the oocytes of these organisms.
During this stage, the chromosomes become elongated and thin, forming loops that resemble the bristles of a brush. These loops contain active genes that are undergoing transcription, and they are thought to play a role in the production of proteins required for embryonic development.
Lampbrush chromosomes are named for their resemblance to the brushes used to clean lamps in the 19th century. They are a unique feature of the oocyte nucleus and have been extensively studied by scientists interested in understanding the mechanisms of gene expression and chromosome structure.
In conclusion, Lampbrush chromosomes occur during the diplotene stage of meiosis in the oocytes of most animals, especially amphibians and birds.
Lampbrush chromosomes are the giant chromosomes found in oocytes of most animals, especially amphibians and birds. They are visible during the diplotene stage of meiosis I in the oocytes of these organisms.
During this stage, the chromosomes become elongated and thin, forming loops that resemble the bristles of a brush. These loops contain active genes that are undergoing transcription, and they are thought to play a role in the production of proteins required for embryonic development.
Lampbrush chromosomes are named for their resemblance to the brushes used to clean lamps in the 19th century. They are a unique feature of the oocyte nucleus and have been extensively studied by scientists interested in understanding the mechanisms of gene expression and chromosome structure.
In conclusion, Lampbrush chromosomes occur during the diplotene stage of meiosis in the oocytes of most animals, especially amphibians and birds.
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Community Answer
Lampbrush chromosomes occur during[1996]a)prophase of mitosisb)diplote...
Lampbrush chromosomes are also called diplotene chromosomes because they are formed during the diplotene stage of prophase1 of meiosis cell division due to the active transcription of many genes. They are a special type of chromosome found in the developing oocytes of most animals (except mammals).
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Lampbrush chromosomes occur during[1996]a)prophase of mitosisb)diplotene of meiosisc)metaphase of meiosisd)interphaseCorrect answer is option 'B'. Can you explain this answer?
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