Cell Cycle and DNA Review

Front

What is the G2 checkpoint responsible for in the cell cycle?

Back

The G2 checkpoint ensures that DNA is fully replicated and undamaged before the cell enters mitosis.

Front

What occurs during the S phase of interphase?

Back

DNA replication takes place during the S phase, resulting in two sister chromatids for each chromosome.

Front

What is the base pairing rule for DNA?

Back

In DNA, the base 'G' (Guanine) always pairs with 'C' (Cytosine).

Front

How many main checkpoints are there in the cell cycle?

Back

There are three main checkpoints in the cell cycle: G1 checkpoint, G2 checkpoint, and M checkpoint.

Front

What is the consequence of a mutation in DNA?

Back

A mutation in DNA may alter protein function, potentially leading to changes in phenotype or disease.

Front

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

Back

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

Front

What happens during the G1 phase of interphase?

Back

During the G1 phase, 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 crucial for ensuring that each daughter cell receives an identical set of chromosomes.

Front

What can result from bypassing the G2 checkpoint?

Back

Bypassing the G2 checkpoint can lead to the division of cells with damaged DNA, resulting in genetic abnormalities.

Front

What is the function of checkpoints in the cell cycle?

Back

Checkpoints function to monitor and regulate the progression of the cell cycle, ensuring proper cell division.