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.