If the cells of root in wheat plant have 42 chromosomes, then the no. of chromosome in the cell of pollen grain is

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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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Correct Answer :

B. 21

Number of chromosome in root cells of wheat plant is 2n = 42 so n = 21 The number of chromosome in the cell of pollen grain is 21 because pollen grains are haploid (n) in nature.

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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

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