CELL CYCLE & MITOSIS

What happens during the G1 phase of the cell cycle?

• DNA replication

• Cell growth and doing cell functions

• Preparing for mitosis

• Active division

During which phase is DNA synthesized for mitosis?

• G1 phase

• S phase

• G2 phase

• M phase

What is the combination of G1, S, and G2 phases called?

• Mitosis

• Interphase

• Cytokinesis

• Telophase

What is the primary activity during the M phase?

• DNA replication

• Cell growth

• Active division

• Preparation for mitosis

Tags

NGSS.HS-LS1-4

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

• Check for DNA damage

• Check for spindle fiber attachment

• Check for cell size

• Check for chromosome number

Which checkpoint occurs after the S phase?

• G1

• G2

• M

• None

What happens if spindle fibers are not correctly attached to sister chromatids?

• The cell cycle continues

• The cell cycle stops at the M checkpoint

• DNA replication begins

• Chromosomes double

Tags

NGSS.HS-LS1-4

What is the consequence of a cell not passing a checkpoint?

• The cell divides anyway

• The cell cycle is halted

• The cell increases in size

• The cell reduces chromosome number

Tags

NGSS.HS-LS1-4

What is the main focus of the G2 checkpoint?

• DNA damage

• DNA replication and cell size

• Spindle attachment

• Chromosome number

What ensures that a cell ends with the same number of chromosomes it began with?

• DNA replication

• Checkpoints

• Cell size

Tags

NGSS.HS-LS1-4