Which of the following best describes the G1 phase of the cell cycle?

• A. The phase where the cell prepares for mitosis
• B. The phase where the cell grows and carries out normal functions
• C. The phase where the cell undergoes cytokinesis
• D. The phase where DNA replication occurs

Answer: (B)

Verified step by step guidance

1. Understand the cell cycle: The cell cycle consists of several phases, including G1, S, G2, and M phases. Each phase has distinct roles in cell growth and division.
2. Identify the G1 phase: The G1 phase is the first stage of interphase, which is the period between cell divisions.
3. Recognize the activities in the G1 phase: During the G1 phase, the cell grows in size and synthesizes proteins and organelles. It is a period of cellular activity and growth.
4. Differentiate from other phases: The S phase is where DNA replication occurs, the G2 phase is where the cell prepares for mitosis, and the M phase includes mitosis and cytokinesis.
5. Conclude the description: The G1 phase is best described as the phase where the cell grows and carries out normal functions, distinguishing it from DNA replication, mitosis preparation, and cytokinesis.