EMBRYOLOGY
CHROMOSOMES AND CELL DIVISIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The ____ holds the replicated sister chromatids together.
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centriole
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chromosomes
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centromere
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cycles
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Explanation:
Detailed explanation-1: -The two “sister” chromatids are joined at a constricted region of the chromosome called the centromere. During cell division, spindle fibers attach to the centromere and pull each of the sister chromatids to opposite sides of the cell. Soon after, the cell divides in two, resulting in daughter cells with identical DNA.
Detailed explanation-2: -Sister chromatids are physically held together by cohesin, which is a protein complex consisting of four core subunits (Fig.
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