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Given below is the representation of a c...

Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage

A

Prophase-I during meiosis

B

Prophase -II during meiosis

C

Prophase of mitosis

D

Both prophase and metaphase of mitosis

Text Solution

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The correct Answer is:
A
During zygotene stage of prophase-I of meiosis-I, bivalent chromosomes clearly appear as tetrads. Pachytene stage is characterised by the appearance of recombination nodules, the sites at which crossing over (exchange of genetic material) occurs between non-sister chromatids of the homologous chromosomes.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-CELL CYCLE AND CELL DIVISION-EXERCISE
  1. A stage in cell division is shown in the figure. Select the answer whi...

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  2. During gamete formation, the enzyme recombinate participates during

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

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  4. Select the correct option with respect to mitosis

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  5. During mitosis ER and nucleolus begin to disappear at

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

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  7. Given below is schematic break-up of phases of cell cycle. Which one ...

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  8. Synapsis occurs between

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  9. The salivary gland Chromosomes in the dipteran larvae, are useful in g...

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  10. Centromere is rquired for

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  11. In which stage of the cell cycle are histone proteins synthesised in a...

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  12. You are provided with floral buds of Chrysanthemum in your class and a...

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  13. Which one of the following precedes re-formation of the nuclear envelo...

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  14. In the somatic cell cycle.

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  15. Crossing over that results in genetic recombination in higher organism...

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  16. Mitotic spindle is mainly composed of proteins.

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  17. Best material to study meiosis is

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  18. Which of the following occurs more than one and less than five in a ch...

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  19. If a diploid cell is treated with colchicine, then it becomes

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  20. During karyokinesis, the spindle fibres get attached to condensing chr...

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