A: Each chromosome of a bivalent attaches wit | vedclass

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(C) In Metaphase $I$ of meiosis,each chromosome of a bivalent attaches to a single spindle fiber from one pole,not two. This is because the kinetochor

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Assertion is correct,but Reason is incorrect.

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(C) In Metaphase $I$ of meiosis,each chromosome of a bivalent attaches to a single spindle fiber from one pole,not two. This is because the kinetochores of sister chromatids are oriented towards the same pole.Therefore,the Assertion is incorrect.In Metaphase $I$,the bivalents (homologous pairs) align at the equatorial plate (metaphasic plate). Thus,the Reason is correct.Hence,the correct option is $C$.

$A$: Each chromosome of a bivalent attaches with two spindles in metaphase.
$R$: In metaphase,bivalents migrate towards the metaphasic plate.

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$A$: Each chromosome of a bivalent attaches with two spindles in metaphase.$R$: In metaphase,bivalents migrate towards the metaphasic plate.