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In meiosis crossing over is initiated at...

In meiosis crossing over is initiated at

A

leptotene

B

zygotene

C

diplotene

D

pachytene

Text Solution

Verified by Experts

The correct Answer is:
D
Leptotene - Condensation of chromatin
Zygotene - Synapsis of homologous chromosomes
Pachytene - Crossing over
Diplotene - Dissolution of synaptonemal complex and appearance of chiasmata
Diakinesis - Terminalisation of chiasmata
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-CELL CYCLE AND CELL DIVISION-EXERCISE
  1. Anaphase promoting complex (APC) is a protein degradation machinery ne...

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  2. Which of the following option gives the correct sequence of events dur...

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  3. In meiosis crossing over is initiated at

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  4. Which of the following is not a characteristic feature during mitosis ...

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  5. Spindle fibers attach on to

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  6. When cell has stalled DNA replication fork , which checkpoint should b...

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  7. Mathc the stages of meisos in Column I to their characteristic feature...

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  8. During cell growth, DNA synthesis takes place in

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  9. Arrange the following events of meiosis in correct sequence (a) Cro...

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  10. During which phase(s) of cell cycle amount of DNA in a cell remains at...

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  11. In 'S' phase of the cell cycle

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  12. The enzyme recombinase is required in which stage of meiosis ?

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  13. The complex formed by a pair of synapsed homologous chromosomes is cal...

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  14. Meiosis takes place in

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  15. A stage in cell division is shown in the figure. Select the answer whi...

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  16. During gamete formation, the enzyme recombinate participates during

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  17. Given below is the representation of a certain event at a particular s...

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  18. Select the correct option with respect to mitosis

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  19. During mitosis ER and nucleolus begin to disappear at

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  20. Which stages of cell division do the following figures A and B represe...

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