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During mitosis ER and nucleolus begin to...

During mitosis ER and nucleolus begin to disappear at

A

late prophase

B

early metaphase

C

late metaphase

D

early prophase

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The correct Answer is:
D
In mitosis, prophase is the longest phase of karyokinesis. In early prophase, nuclear membranes, nucleolus start disintegrating. Calls cytoskeleton, Golgi complex, ER, etc. disappear.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-CELL CYCLE AND CELL DIVISION-EXERCISE
  1. Given below is the representation of a certain event at a particular s...

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  2. Select the correct option with respect to mitosis

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  3. During mitosis ER and nucleolus begin to disappear at

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

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

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  6. Synapsis occurs between

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

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  8. Centromere is rquired for

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

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

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

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  12. In the somatic cell cycle.

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

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  14. Mitotic spindle is mainly composed of proteins.

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  15. Best material to study meiosis is

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

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

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

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  19. Crossing over in diploid organism is responsible for

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  20. A bacterium divides every 35 minutes. If a culture containing 10^(5) c...

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