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Roots: Structure and Types

The number of...

Question

The number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells is

A

21

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B

42

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C

63

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D

84

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Solution

The correct option is B 63
Aleurone is triploid in nature. Whereas, root is diploid in nature. Thus, 2n = 42, n = 21.
Aleurone plant will have 3n = 3 x 21 = 63 chromosomes.

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