AP Bio Insta-Review Topic 4.7: Regulation of Cell Cycle

Front

What is the function of the M checkpoint?

Back

Check DNA is undamaged.

Front

Proto-oncogenes can mutate into oncogenes. True or False?

Back

True.

Front

What stimulates progression from the G2 checkpoint?

Back

Cyclin level rises to specific level to bind with CdKs.

Front

Which checkpoint verifies DNA has 'no errors' and replicated?

Back

G2 checkpoint.

Front

If the cell doesn’t get the go ahead signal in G1, where does it go?

Back

G0 phase.

Front

What is the role of cyclins in the cell cycle?

Back

Cyclins are proteins that regulate the cell cycle by activating cyclin-dependent kinases (CdKs).

Front

What happens during the G1 phase of the cell cycle?

Back

The cell grows and synthesizes proteins necessary for DNA replication.

Front

What is the significance of the S phase in the cell cycle?

Back

The S phase is when DNA replication occurs, resulting in two sister chromatids for each chromosome.

Front

What is the role of CdKs in the cell cycle?

Back

Cyclin-dependent kinases (CdKs) are enzymes that, when activated by cyclins, drive the cell cycle forward.

Front

What occurs at the G2 checkpoint?

Back

The cell checks for DNA damage and ensures all DNA has been replicated before proceeding to mitosis.