A bivalent of meiosis I consists of | vedclass

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(A) The correct answer is $A$.During the prophase $I$ of meiosis,homologous chromosomes pair up to form a structure known as a bivalent or tetrad.Each

Vedclass · Accepted Answer

four chromatids and two centromeres

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(A) The correct answer is $A$.During the prophase $I$ of meiosis,homologous chromosomes pair up to form a structure known as a bivalent or tetrad.Each homologous chromosome consists of two sister chromatids joined by a single centromere.Since a bivalent consists of two homologous chromosomes,it contains a total of $4$ chromatids ($2$ from each chromosome) and $2$ centromeres ($1$ from each chromosome).

Column $I$	Column $II$
$(A)$ Prophase-$I$	$(i)$ Chromosomes move towards poles with centromeres
$(B)$ Metaphase-$I$	$(ii)$ Half the number of chromosomes are observed
$(C)$ Anaphase-$I$	$(iii)$ Longest phase of Meiosis-$I$
$(D)$ Telophase-$I$	$(iv)$ Two nuclei are observed

$A$ bivalent of meiosis $I$ consists of

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