SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Identify where this occurs:Pairs of sister chromatids align at the equator.
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Metaphase I
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Metaphase II
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Anaphase I
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Anaphase II
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Explanation:
Detailed explanation-1: -During metaphase, spindle fibers attach to the centromere of each pair of sister chromatids (see Figure below). The sister chromatids line up at the equator, or center, of the cell. This is also known as the metaphase plate.
Detailed explanation-2: -During metaphase II, the centromeres of the paired chromatids align along the equatorial plate in both cells.
Detailed explanation-3: -Metaphase II: Spindle fibers line up the sister chromatids of each chromosome along the equator of the cell. Anaphase II: Sister chromatids separate and move to opposite poles. Telophase II and Cytokinesis: The spindle breaks down, and new nuclear membranes form.
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