Question

During ____________________ of mitosis __________________ chromatids segregate.

A. telophase; sister

B. telophase; non-sister

C. anaphase; sister

D. anaphase; non-sister

E. metaphase; sister

F. metaphase; non-sister

Answer 1

Here, the correct answer is C. anaphase; sister

Explanation -

Mitosis is an equational division in which the number of chromosomes in the daughter cell remains the same as that of parent cells. Mitosis takes place in the somatic cells and 2 daughter cells are produced. Before the mitosis, the DNA replication takes place where the DNA duplication takes place. At the later prophase of the mitosis stage, the X- shaped chromosomes are formed. These X - shaped structures have two chromatids known as sister chromatids to each other because the two chromatids are the exact copy of each other.

These chromatids get separate during the anaphase and moves towards two different opposite poles. Thus, the amount of DNA is restored in the daughter cells. During anaphase due to the separation of the sister chromatids the number of the chromosome in the cell doubles (4n). But after telophase, each daughter cell has 2n number of chromosomes and 2n amount of DNA.

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