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

Vedclass · Accepted Answer

Assertion is correct,but Reason is incorrect.

Vedclass · Answer

(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.

Similar Questions

Which stage of meiosis involves the separation of the centromere?

At which phase of meiosis,do the two cells,each with separated sister chromatids,move towards opposite poles?

Describe the following:
$(a)$ Synapsis
$(b)$ Bivalent
$(c)$ Chiasmata
Draw a diagram to illustrate your answer.

Which of the following types of cell division results in a reduction of the chromosome number?

Describe Metaphase-$I$,Anaphase-$I$,and Telophase-$I$ of Meiosis-$I$.

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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.