EMBRYOLOGY
CHROMOSOMES AND CELL DIVISIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The two halves of the doubled chromosome structure
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centromeres
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sister chromatids
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spindle
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tissues
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Explanation:
Detailed explanation-1: -A chromatid is one of the two identical halves of a chromosome that has been replicated in preparation for cell division. The two “sister” chromatids are joined at a constricted region of the chromosome called the centromere.
Detailed explanation-2: -Cohesin is a ring-shaped protein complex Sister chromatids are physically held together by cohesin, which is a protein complex consisting of four core subunits (Fig.
Detailed explanation-3: -Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II.
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