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Question

Sister chromatids are joined at

A
Chromocentre
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B
Metacentre
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C
Centromere
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D
Telomere
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Solution

The correct option is C Centromere
  • The specialized DNA sequence that links a pair of sister chromatids where the spindle fibres are attached during cell division is known as a centromere.
  • It is the lighter staining region on the chromosome of a cell which appears as a constriction.
  • They are also known as a primary constriction or kinetochore.
  • So, the correct answer is 'Centromere'.

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