In a plant species with 24 chromosomes in its root cells, a scientist examines pollen grains produced by meiosis. How many chromosomes would be present in each pollen grain nucleus?

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Question

In a plant species with 24 chromosomes in its root cells, a scientist examines pollen grains produced by meiosis. How many chromosomes would be present in each pollen grain nucleus?

Accepted Answer

12 — Award 1 mark for 12. Root cells are diploid (2n = 24), so gametes (pollen grains) produced by meiosis are haploid (n = 12). A is incorrect because 6 would represent a further halving. C is incorrect because 24 is the diploid number. D is incorrect because 48 would represent chromosome doubling.

Answer

12

Answer

48

Answer

24

Answer

6

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