The number of chromatids in a chromosome at a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) During $Anaphase$ of mitosis,the centromere of each chromosome splits,and the chromatids separate. Each separated chromatid is now considered an i

Vedclass · Accepted Answer

$1$ in mitosis and $2$ in meiosis

Vedclass · Answer

(B) During $Anaphase$ of mitosis,the centromere of each chromosome splits,and the chromatids separate. Each separated chromatid is now considered an independent chromosome. Therefore,each chromosome at this stage consists of $1$ chromatid.During $Anaphase-I$ of meiosis,homologous chromosomes separate,but the sister chromatids remain attached at the centromere. Thus,each chromosome still consists of $2$ chromatids.During $Anaphase-II$ of meiosis,the centromere splits,and the sister chromatids separate,resulting in $1$ chromatid per chromosome.However,in the context of standard textbook questions regarding the transition of chromosomes during $Anaphase$,it is observed that in mitosis,the chromosome count effectively doubles as chromatids become chromosomes ($1$ chromatid per chromosome),whereas in $Anaphase-I$ of meiosis,the chromosome retains $2$ chromatids. Thus,the correct answer is $1$ in mitosis and $2$ in meiosis.

The number of chromatids in a chromosome at anaphase is

Similar Questions

Statement $P$: The $G_1$ phase is the final phase of interphase.
Statement $Q$: $DNA$ synthesis occurs in the $G_2$ phase.

Which of the following is a mitotic poison?

$S -$ Statement: The efficient size of the cell is maintained by meiosis.
$R -$ Reason: The specific type and fixed number of chromosomes are maintained in organisms generation after generation by mitosis.

Compare the statements $A$ and $B$.
$Statement A$: Synthesis of $DNA$ takes place in the $S$-phase of interphase.
$Statement B$: Every chromosome,during metaphase,has two chromatids.
Choose the correct description.

$S -$ Statement: Cells cannot maintain their efficient size through mitosis.
$R -$ Reason: Meiosis is an important process for evolution.

Vedclass Test Series

Exam Paper Generator

Online Exam Module