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Q.

How many chromosomes are present in coleoptile, scutellum and endosperm cells of maize seed in which, root hair has 20 chromosomes?

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a

10, 10 and 20

b

20, 10 and 10

c

10, 20 and 30

d

20, 20 and 30

answer is C.

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Detailed Solution

In maize, meiocyte contains 20 chromosomes and gamete has 10 chromosomes.
Coleoptile = 2n = 20
Scutellum = 2n = 20
Endosperm cell = 3n = 30

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