What are the differences between the G0, G1, and G2 phases of the cell cycle? Do all cells proceed through each of these phases? g

The cell division is divided into two main phase - interphase and M (mitosis) phase. The interphase is further divided into G1, S phase and G2 phase.

G1 (gap 1 phase): The G1 phase is marked by the complete growth of the cell. The cells accquire different proteins and factors that are necessary for the cells to undergo the process of DNA rep[lication of the synthesis phase.

G2 phase (gap 2 phase) : During the G2 phase the cells prepares itself to undergo the M phase and underwent through the different phases of the cell cycle. The nuclear envelope forms around DNA and centrosomes are fully developed.

G0 phase: The G0 phase is also known as the extended phase of the G1 cycle. The G0 phase occurs when the cells are completely ready but do not undergo G1 phase, this might occur when the tissue is under the generation process.

The cells will go through the G1, S, G2 and M phase of the cell cycle. This is not necessary that all cells undergo the G0 phase of the cell cycle.