Quick 10Q: Mitosis

Front

What is the M checkpoint in the cell cycle?

Back

The M checkpoint ensures that all microtubules are properly attached to kinetochores before the cell proceeds with mitosis.

Front

What happens during Anaphase?

Back

During Anaphase, microtubules pull sister chromatids apart to opposite poles of the cell.

Front

What occurs during Telophase?

Back

In Telophase, a nuclear envelope forms around each set of separated chromosomes, marking the end of mitosis.

Front

What is the G1 checkpoint?

Back

The G1 checkpoint determines whether the cell is ready to divide, assessing cell size, DNA integrity, and nutrient availability.

Front

What must occur before mitosis can begin?

Back

DNA replication must occur before mitosis, ensuring that each daughter cell receives an identical set of chromosomes.

Front

Define Prophase in mitosis.

Back

Prophase is the first stage of mitosis where chromatin condenses into visible chromosomes and the nuclear envelope begins to break down.

Front

What role do microtubules play in mitosis?

Back

Microtubules help separate chromosomes by attaching to kinetochores and pulling sister chromatids apart during Anaphase.

Front

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

Back

The S phase is crucial for DNA replication, ensuring that each daughter cell has a complete set of chromosomes.

Front

What happens during Metaphase?

Back

During Metaphase, chromosomes align at the cell's equatorial plane, preparing for separation.

Front

What is chromatin?

Back

Chromatin is a complex of DNA and proteins that condenses to form chromosomes during cell division.