Question

A disruption of the cell cycle can occur during Gap 1 (G1 phase). At this phase, a cell may be prevented from synthesizing necessary proteins. The failure to synthesize the proteins typically causes a:

a) Delay in cell division.
b) Speeding up of cell division.
c) Increase in DNA replication.
d) Formation of additional organelles.

Answer 1

A disruption in protein synthesis during the G1 phase of the cell cycle typically causes a delay in cell division due to the failure in preparing the necessary components for DNA replication.

Step-by-step explanation:

During the Gap 1 (G1 phase) of the cell cycle, the cell grows and prepares for DNA replication by synthesizing necessary proteins. If there is a disruption in protein synthesis during the G1 phase, it can result in a delay in cell division. This delay occurs because the cell may not have the necessary proteins to progress to the next phase of the cycle, especially those needed for DNA replication in the subsequent Synthesis Phase (S phase).

Such disruptions can activate internal checkpoints that prevent the cell from proceeding until conditions are favorable, or lead the cell into a resting state (commonly referred to as G0 phase) if the issues are severe. This regulatory mechanism helps maintain proper cell function and prevents issues such as the accumulation of mutations that could lead to conditions like cancer.