Understanding the Cell Cycle

What is the primary function of the G1 phase in the cell cycle?

• DNA replication

• Cell growth and preparation for DNA synthesis

• Cell division

• Chromosome alignment

During which phase of the cell cycle does DNA replication occur?

• G1 phase

• S phase

• G2 phase

• M phase

What happens during the G2 phase of the cell cycle?

• The cell grows and prepares for mitosis

• DNA is replicated

• The cell rests and does not divide

• Chromosomes are separated

Tags

NGSS.HS-LS1-4

Which phase is known as the resting phase where the cell is not actively preparing to divide?

• G1 phase

• S phase

• G0 phase

• M phase

What is the main purpose of the G1 checkpoint in the cell cycle?

• To ensure DNA has been replicated correctly

• To check for cell size, nutrients, and DNA damage

• To separate sister chromatids

• To align chromosomes

What does the G2 checkpoint primarily verify before the cell enters mitosis?

• Chromosome alignment

• DNA replication completeness and damage repair

• Cell size and nutrient availability

• Separation of sister chromatids

Tags

NGSS.HS-LS1-4

How does the length of interphase compare to mitosis in the cell cycle?

• Interphase is shorter than mitosis

• Interphase is longer than mitosis

• Interphase and mitosis are of equal length

• Interphase does not occur in the cell cycle

Tags

NGSS.HS-LS1-4

Which of the following phases is not part of interphase?

• G1 phase

• S phase

• G2 phase

• M phase

Which phase follows the G2 phase in the cell cycle?

• G1 phase

• S phase

• M phase

• G0 phase

What is the primary event that occurs during the S phase of the cell cycle?

• Cell growth

• DNA synthesis

• Chromosome separation

• Cell division