Question

What is the difference between G1 and G2 phases?

Answer 1

The G1 phase is the first phase of the interphase of the cell cycle in which the cell shows growth by synthesizing proteins and other molecules.

The G2 phase is the third phase of the interphase of the cell cycle in which the cell prepares for nuclear division by making necessary proteins and other components.

Answer 2

During G1 phase in mitosis the cell undergoes the first growth, in which the organelles are being copied and the cell prepares for the duplication of DNA. The DNA is copied during the S phase and the G2 phase starts after that. During the G2 phase, the cell undergoes the second growth, in which proteins and organelles are still replicating but also preparing for cell division.

So, during G1 phase the DNA is not duplicated, and during G2 phase it is.

During G1 phase occurs the frist growth, and during G2 phase occurs the second growth.

During G1 phase the cell prepares for DNA duplication, and during G2 phase the cell prepares for cell division.