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An another has 1200 pollen grains. How m...

An another has 1200 pollen grains. How many PMCs must have been there to produce them?

A

1200

B

300

C

150

D

2400

Text Solution

Verified by Experts

The correct Answer is:
B
Meiosis of one Pollen Mother Cell (PMC) produces 4 haploid pollen grains. Thus, for producing 1200 pollen grains, 1200/4=300 PMCs are required.
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NCERT FINGERTIPS-CELL CYCLE AND CELL DIVISION-Cell Cycle And Cell Division
  1. In which of the following ways are mitosis and meiosis similar?

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  2. At what phase of meiosis there are two cells, each with separated site...

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  3. An another has 1200 pollen grains. How many PMCs must have been there ...

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  4. Meiosis does not occur in

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  5. In animals meiotic division occurs during gamete formation. This gamet...

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  6. The durations of mitotic stages in two situations. (A and B) are tabul...

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  7. Given graphs P,Q,R and S show four stages of cell cycle i.e., G(1),S,G...

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  8. Which of the following graphs shows the relative change in the amount ...

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  9. The given figure is a schematic break-up of the phases/stages of cell ...

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  10. Given diagram shows variations in the amount of DNA of a developing eu...

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  11. Meiosis in diploid organisms results in

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  12. At which stage of meiosis does the genetic constitution of gametes is ...

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  13. Meiosis occurs in organisms during

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  14. During anaphase I of meiosis

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  15. Mitosis is characterised by

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  16. A bivalent of meiosis i consists of

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  17. Cells which are not dividing are likely to be at

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  18. Which of the events listed below is not observed ruing mitosis?

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  19. Identify the wrong statement about meiosis.

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  20. Select the correct statement about G(1) phase.

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