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To build up food reserves in the cytopla...

To build up food reserves in the cytoplasm, chromosomes become unfolded to start transcription of mRNA and RNA, during which phase of meiosis ?

A

Diakinesis

B

Zygotene

C

Diplotene

D

Leptotene

Text Solution

Verified by Experts

The correct Answer is:
C
In diplotene stage of meiosis I, the chromosomes may unfold to nearly normal form and start transcription of mRNA and rRNA to build up food reserves in the cytoplasm. This process is is most pronounced in the primary oocytes of amphibians, reptiles and birds. in some species, the chromosomes enlarge greatly, asuuming lampbrush form.
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NCERT FINGERTIPS-CELL CYCLE AND CELL DIVISION-Cell Cycle And Cell Division
  1. Which of the following is correct about bivalent? (i) Bivalents are...

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  2. The process of crossing over is assisted by which of the following enz...

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  3. To build up food reserves in the cytoplasm, chromosomes become unfolde...

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  4. At which stage, the homologous chromosomes separate due to repulsion, ...

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  5. Diplotene stage of prophase-I is characterised by

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  6. (i) Thin thread like chromosomes with a beaded appearance (ii) Appea...

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  7. (i) Thin thread like chromosomes with a beaded appearance (ii) Appea...

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  8. Mathc the column I with column II and select the option from given cod...

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  9. Identify the given figures showing meiotic phases and select the corre...

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  10. The figure given below shows a cell undergoing meiosis. Which of ...

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  11. Disjunction refers to

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  12. Lampbrush chromosomes are seen in which typical stage?

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  13. Mathc column I with column II and select the correct option from the g...

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  14. During meiosis I, chromosome number

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  15. Refer to the given stages A,B,C and D of meiosis I and select the inco...

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  16. During meiosis I in humans, one of the daughter cells receives

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  17. The number of chromosomes is reduced to half during

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  18. Four different steps that occur during meiosis are given in the follow...

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  19. Select the incorrectly mathced pair.

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  20. Splitting of centromere and hence separation of chromatids occur durin...

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