What is the number of chromatids in a chromos | vedclass

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(A) During the $S$-phase of interphase,$DNA$ replication occurs,resulting in each chromosome consisting of two sister chromatids joined at the centrom

Vedclass · Accepted Answer

Two in both mitosis and meiosis.

Vedclass · Answer

(A) During the $S$-phase of interphase,$DNA$ replication occurs,resulting in each chromosome consisting of two sister chromatids joined at the centromere.In mitosis,the chromosomes align at the metaphase plate,and each chromosome still consists of two chromatids.In meiosis $I$,homologous chromosomes pair up and align at the metaphase plate; each chromosome still consists of two chromatids.Therefore,in both mitosis and meiosis (specifically metaphase $I$),each chromosome consists of two chromatids.

Column $I$	Column $II$
$A$. Synapsis aligns homologous chromosomes	$(i)$ Anaphase $II$
$B$. Synthesis of $RNA$ and protein	$(ii)$ Zygotene
$C$. Action of enzyme recombinase	$(iii)$ $G_2$ phase
$D$. Centromeres do not separate but chromatids move towards opposite poles	$(iv)$ Anaphase $I$
	$(v)$ Pachytene

What is the number of chromatids in a chromosome during metaphase?

Similar Questions

Which of the following options represents the correct sequence of events during mitosis?

Which chromosome may be lost during cell division?

Which of the following features is common to both mitosis and meiosis?

Distinguish between the anaphase of mitosis and the anaphase $I$ of meiosis.

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