Question

The image given below is a diagrammatic representation of cell cycle. Which alphabet represents the cell division?

• A. A
• B. B
• C. C
• D. D

Answer 1

The correct option is D D

Cell cycle includes two main phases, interphase and division phase (M phase).

Interphase is subdivided into G${}_1$, S and G${}_2$ phases.
During the $G_1$ phase, there is overall cell growth and the cell is metabolically active.
DNA undergoes replication during S phase and makes a copy of itself.
During the $G_2$ phase, proteins like tubulin needed for cell division are synthesised.

Interphase is followed by M phase, during which the cell undergoes division and forms into two daughter cells.

A represents $G_1$ phase
B represents S phase
C represents $G_2$ phase
D represents mitotic phase (division phase).