NEET Biology question

Which of the following is key event of anaphase of mitotic division?

(A)Chromosomes are moved to spindle equator and get aligned through spindle fibres to both poles.
(B)Centromeres split and chromatids separate.Correct
(C)Chromosomes cluster at opposite spindle poles and their identity is lost as discrete elements.
(D)Both (b) and (c)

Answer: (B)

Solution

(A) describes (pro)metaphase, not anaphase. (C) describes telophase, where chromosomes decondense and lose their discrete identity at the poles. Only (B) —

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Question ID VK-127383