Question

The longest stage in the cell cycle is

• A. Interphase
• B. Anaphase
• C. Metaphase
• D. None of the above

Answer 1

Answer:

A. Interphase

• The G1 phase is the longest in the cell cycle.

• It’s the beginning of the interphase.

• The cell prepares for division during the G1 phase.

• During the G1 phase, cells are extremely metabolically active.

• During this phase, the associated proteins in DNA replication, as well as the energy required for DNA replication, are synthesized.

• The interphase’s G1 phase is followed by the S phase.

• Hence, Interphase is the longest phase of cell division.

• In a 24-hour cell cycle, 23 hours are for the Interphase phase and 1 hour for the Mitosis phase.