Question

If a cell does not divide frequently, then it has a
Longer G1-phase
Shorter G1-phase
Longer S-phase
Longer G2-phase​

Answer 1

I think longer G2- phase

Answer 2

Answer:

The correct answer is a longer G1 phase.

Explanation:

• If a cell needs to divide, it has to undergo several important tasks, like growing, duplicating its DNA, synthesizing proteins, RNA, etc. All of these are performed in an organized series of events, which is known as the cell cycle.
• In the interphase of the cell cycle, the cell prepares for the next cell division. This stage has three phases: Gap phase1 (G1), Synthesis phase (S), and Gap phase2 (G2).
• In a typical rapidly proliferating human cell, the G1 phase might last about 11 hours, the S phase about 8 hours, G2 about 4 hours, and M about 1 hour.
• If a cell does not divide frequently, then it has a longer G1 phase because this phase has a G1/S checkpoint, which is the major control point in the cell cycle. If the cells pass this checkpoint, then they will most likely divide, and if not then they will enter into arresting phase (G₀).

Hence, the correct answer is a longer G1 phase.