NEET 2012 Biology question

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres

(1)Anaphase II
(2)Metaphase I
(3)Metaphase II
(4)Anaphase ICorrect

Answer: (4)

Solution

In anaphase I of meiosis the bivalents separate: the two homologous chromosomes of each pair move to opposite poles, while the two sister chromatids of each chromosome remain held together at the centromere. In anaphase II the centromeres divide and

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Question ID VK-091060