A) 4
B) 8
C) 16
D) 32
Correct Answer: C
Solution :
Metaphase of mitosis division is best stage measuring size, counting numbers and morphology of chromosomes, Chromosomes are dearly visible during this phase. Each chromosome consists of two chromatids or chromonemata. The two chromatids are joined at one point. This point of attachment of two chromatids is known as kinetochore or centromere, which is one in each chromosome. Since, a onion contain 16 (2n) chromosome. So, the number of centromere will be 16.
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