NEET BIOLOGY

Detailed explanation-1: -The sister chromatids are separated simultaneously at their centromeres. The separated chromosomes are then pulled by the spindle to opposite poles of the cell.

Detailed explanation-2: -Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate.

Detailed explanation-3: -The splitting of centromere does not occur in anaphase I but occurs in anaphase II. Anaphase is the stage of mitosis or meiosis when chromosomes are split and the sister chromatids move to opposite poles of the cell.

Detailed explanation-4: -At the end of anaphase I, two haploid sets are present at each end of the cell. Because of these factors, the centromeres do not split during anaphase I.

Detailed explanation-5: -Anaphase and telophase I Critically, sister centromeres, and thus chromatids, do not separate during anaphase I. During meiosis I, cytoplasmic division occurs by specialized mechanisms. In females, the division is highly asymmetric, producing one egg and one tiny cell known as a polar body.