Question

Which of the following stage of M-phase is considered as tetraploid stage?

• A. Anaphase of mitosis
• B. Anaphase-I of meiosis
• C. Metaphase-II of meiosis
• D. More than one option is correct

Answer 1

The correct option is A Anaphase of mitosis

In mitosis DNA content is doubled during S phase resulting in 2n chromosomes having two chromatids. These 2 chromatids of 2n get arranged at metaphase plate in metaphase. And in anaphase, the 2 chromatids of 2n chromosomes are separated from each other . so the cell during this phase becomes 4n.

So, the correct answer is 'Anaphase of mitosis'.