Question:
During cell division, spindle fibres get attached at __________.
During cell division, spindle fibres get attached at __________.
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The centromere carries disc shaped protein structures.
Updated On: Nov 12, 2026
- SAT body
- Secondary constriction
- Chromatids
- Kinetochore
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
Each chromosome has a centromere with a disc-shaped protein structure on either side, called the kinetochore.
Step 2: Role
Spindle microtubules attach to the kinetochore in prometaphase and metaphase. They pull the chromatids to the poles in anaphase.
Step 3: Compare
The secondary constriction and SAT body do not bind spindle fibres. So the site is the kinetochore.
Final Answer:
Spindle fibres attach at the kinetochore. \[ \boxed{\text{(D) }\text{Kinetochore}} \]
Each chromosome has a centromere with a disc-shaped protein structure on either side, called the kinetochore.
Step 2: Role
Spindle microtubules attach to the kinetochore in prometaphase and metaphase. They pull the chromatids to the poles in anaphase.
Step 3: Compare
The secondary constriction and SAT body do not bind spindle fibres. So the site is the kinetochore.
Final Answer:
Spindle fibres attach at the kinetochore. \[ \boxed{\text{(D) }\text{Kinetochore}} \]
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