During metaphase, chromosomes are attached to the spindle fibers by their:
Correct answer: C. Kinetochores
- A. Primary constrictions
- B. Secondary constrictions
- C. Kinetochores
- D. Centromeres
Explanation
The key feature of metaphase is the attachment of spindle fibers to kinetochores of chromosomes. Kinetochores are disc-shaped structures at the surface of the centromeres. These structures serve as the sites of attachment of spindle fibers to the chromosomes that are moved into position.
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