Question

During the cell cycle, the cell enters the interphase before it undergoes another cycle of division. Why?

Answer 1

Cell Cycle: A cell cycle is a set of sequential events that occur in a cell as it divides and grows.

Phases of the cell cycle:

The cell cycle has two phases: Interphase and Mitotic phase. But interphase is further divided into G1, S and G2 phases and each of these stages includes different events:

1. Gap-1 or G1: It is the first phase in which a cell grows.
2. Synthesis or S phase: The cell copies its DNA in this phase.
3. Gap-2 or G2: The cell prepares itself to divide.
4. Mitosis or M-stage: Finally the division of cells takes place in Mitosis or M-stage.

Reasons why cell enters the interphase before it undergoes another cycle of division:

1. A cell enters the interphase before it undergoes another cycle of division because it requires to double its DNA content.
2. Interphase is that phase of the cell cycle in which the cell grows and duplicates its DNA before entering mitosis of another cell cycle.
3. Doubling of DNA is necessary to keep the ploidy level similar in the offspring to that of the parent.