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Question

The .......... is a primary constriction.

A
Telomere
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B
Sarcomere
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C
Chromomere
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D
Centromere
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Solution

The correct option is D Centromere
  • The portion of the chromosome where the sister chromatids are connected is called as the centromere.
  • Hence a region of primary constriction. Each chromatid is thinner at the primary constriction than along the rest of its length in the chromosome.
Thus the correct answer is option D.

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