Which statement describes the G0 phase?

Which statement describes the G0 phase?

• A. It is a period of rapid cell division.
• B. No further division; cells just perform their specialized functions.
• C. It is synonymous with S phase.
• D. It is where spindle fibers form.

Answer: (B)

G0 is a state where cells have exited the division cycle and are not preparing to divide; they focus on specialized functions instead. Some cells stay in G0 for long periods (or permanently, like many neurons), while others can re-enter the cycle if needed. This is why the statement that there is no further division and cells perform their specialized roles fits best. In contrast, rapid division happens during the mitotic processes after G1, S phase is when DNA is replicated, and spindle fibers form during mitosis, not in G0.

G0 is a state where cells have exited the division cycle and are not preparing to divide; they focus on specialized functions instead. Some cells stay in G0 for long periods (or permanently, like many neurons), while others can re-enter the cycle if needed. This is why the statement that there is no further division and cells perform their specialized roles fits best. In contrast, rapid division happens during the mitotic processes after G1, S phase is when DNA is replicated, and spindle fibers form during mitosis, not in G0.