Question

A cell in the G0 stage _____.

1) has withdrawn from the cell cycle
2) is in the process of dividing
3) is replicating its DNA
4) has just completed cell division
5) is preparing for cell division

Answer 1

A cell in the G0 stage has withdrawn from the cell cycle and is not preparing for cell division. It might remain in this stage temporarily or permanently, especially if it is a cell type that rarely divides.

Step-by-step explanation:

A cell in the G0 stage has withdrawn from the cell cycle. This phase is known as a quiescent or inactive phase where the cell is not actively preparing to divide. Cells enter G0 from the G1 phase of the cell cycle and may remain there temporarily, or in some cases, permanently, especially if the cell is a type that rarely divides, like mature cardiac muscle and nerve cells.

The cell cycle includes interphase, which consists of G1, S, and G2 phases. Interphase is crucial for cell growth, DNA replication, and preparation for cell division. However, cells that have entered the G0 stage are no longer progressing through these stages. They might re-enter the cell cycle if triggered by external signals or remain in G0 indefinitely.