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Question

In metaphase I, the spindle microtubules attach to the kinetochore of ______.
In metaphase II, the spindle microtubules attach to the kinetochore of ______.

A
homologous; non-homologous chromosomes
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B
non-homologous; homologous chromosomes
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C
sister chromatids; homologous chromosomes
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D
homologous chromosomes; sister chromatids
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Solution

The correct option is D homologous chromosomes; sister chromatids
The kinetochore is a proteinaceous disc-shaped structure near the centromere which helps in cell division.


Metaphase I of meiosis I: The homologous chromosomes align at the equatorial plate. The spindle microtubules attach to the kinetochore of the homologous chromosomes.

Metaphase II of meiosis II: The chromosomes align at the equatorial plate and the spindle microtubules attach to the kinetochores of the sister chromatids.



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