Cell Cycle

Which of the following is not a phase of the cell cycle?

• G1

• G2

• M

• C

What happens during the S phase of interphase?

• Cell growth

• Organelle duplication

• DNA replication

• Nuclear division

During which phase does the cell prepare for mitosis by producing the necessary proteins and enzymes?

• G1

• S

• G2

• M

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

• To ensure that the chromosomes are properly aligned

• To check for DNA damage before replication

• To verify the separation of chromosomes

• To signal cytokinesis

What happens during the G0 phase?

• Cells divide rapidly

• Cells grow larger than normal

• Cells exit the cell cycle and do not divide

• Cells continuously duplicate DNA

What checkpoint ensures that all chromosomes are properly attached to the spindle before anaphase?

• G1 checkpoint

• S checkpoint

• G2 checkpoint

• M checkpoint

What phase of the cell cycle follows cytokinesis?

• S Phase

• G2 Phase

• G1 Phase

• Mitosis

What process does not occur during interphase?

• Cell growth

• DNA replication

• Formation of spindle fibers

• Organelle duplication

In rapidly dividing cells, which phase is typically the shortest?

• G1

• S

• M

• G2

What happens if a cell fails at a checkpoint and cannot repair the damage?

• Returns to the S phase

• Skips the phase and continues

• Undergoes apoptosis (programmed cell death)

• Becomes a stem cell