Cell Cycle Regulation

Front

What are cell cycle checkpoints?

Back

Control mechanisms that ensure the integrity of the cell cycle.

Front

What happens if a cell fails to pass the G2 checkpoint?

Back

The cell will either enter G0 phase or undergo apoptosis.

Front

What are cyclin-dependent kinases (CDKs)?

Back

CDKs are enzymes that regulate the cell cycle.

Front

What is the role of cyclins in cell cycle regulation?

Back

Cyclins regulate the cell cycle by forming complexes with CDKs and promoting the progression of the cell cycle.

Front

What is the function of the M checkpoint in the cell cycle?

Back

The M checkpoint ensures that all chromosomes are properly attached to the mitotic spindle before the cell enters anaphase.

Front

What is the G1 phase of the cell cycle?

Back

The G1 phase is the first gap phase where the cell grows and prepares for DNA replication.

Front

What occurs during the S phase of the cell cycle?

Back

During the S phase, DNA replication occurs, resulting in two sister chromatids for each chromosome.

Front

What is the G2 phase of the cell cycle?

Back

The G2 phase is the second gap phase where the cell prepares for mitosis and checks for DNA damage.

Front

What is apoptosis?

Back

Apoptosis is a programmed cell death process that eliminates damaged or unnecessary cells.

Front

How do CDKs become activated?

Back

CDKs become activated when they bind to cyclins, forming a cyclin-CDK complex.