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Q.

At metaphase of mitosis, each chromosome consists of how many chromatids(s) – centromere(s) – kinetochore (s) and – molecules of DNA.

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a

2, 2, 2, 2

b

2, 1, 1, 1

c

2, 1, 2, 1

d

2, 1, 2, 2

answer is C.

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Detailed Solution

Each chromosome at mitotic metaphase consists of 2 chromatids, one centromere, 2 kinetochores and 2 molecules of DNA. Each chromatic consists of one DNA molecules , so that number of chromatids = number of DNA molecules.

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