Asked Oct 29, 2019

What is the number of DNA replications in human S phase of the cell cycle in mitosis? in meiosis?


Expert Answer

Step 1

The process of formation of two identical copies of a double stranded-DNA molecule is termed as DNA replication. It is an important process in the mitotic division because in mitosis two daughter cells acquire the same DNA strand as of their parent. Moreover, DNA replication is semiconservative in nature, as one DNA strand in the daughter cell is from the parent’s DNA. This process takes place in three steps, initiation, elongation, and termination. 

Step 2

In mitosis, one parent cell gets divided into two identical daughter cells. This process is divided into various stages, interphase, prophase, metaphase, anaphase, telophase, and cytokinesis. Interphase is further divided into the G1 phase, S phase, and G2 phase. In the S phase, DNA replication occurs, and two new daughter DNA strands are formed. These DNA strands are equally divided between the two daughter cells. Hence, only on...

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