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29/10/2020 1:10 pm
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If the cells of root in wheat plant have 42 chromosomes, then the no. of chromosome in the cell of pollen grain is
(a) 14
(b) 21
(c) 28
(d) 42
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29/10/2020 1:11 pm
(b) 21
Explanation:
Number of chromosome in root cells of wheat plant is
2n = 42
n = 42/2 = 21
The number of chromosome in the cell of pollen grain is 21 because pollen grains are haploid (n) in nature.