Question

How many times does DNA replicate during meiosis?

Answer 1

Hint: Meiosis is a process where a parent cell undergoes division to form four daughter haploid cells. Among the M phase and interphase, interphase takes 95% of the total time of the cell cycle and the M phase is of very short duration.

Complete answer:
1)An entire cell cycle of both meiosis and mitosis includes different phases that are the $G_1$ phase, $G_2$ phase, M phase, and S phase.
2)Out of all phases the DNA replication occurs only in the S phase of meiosis. The entire meiosis cell cycle has only one S phase that means the DNA will get replicated only once in the entire meiotic division.
3)The meiosis cell cycle except the M phase is also known as the interphase. M phase is the period where only cell division occurs whereas interphase is the phase where DNA replication, protein synthesis occur.
4) S phase is also known as the synthesis phase and it lies between $G_1$ and $G_2$ phase and the entire S phase is properly monitored to ensure proper DNA replication.
When the cell enters the S phase, a restriction point present at G1 checks whether the cell has all the substances required for DNA replication.

Note: The DNA replication occurs only once in both meiosis and mitosis although the number of cell divisions is two in meiosis and one in mitosis which results in the production of different numbers of haploid cells in both the process.