stem cells

Question 1

What is the cell cycle?

Answer 1

The series of events that lead to cell division and replication

The cell cycle is crucial for growth, development, and tissue repair.

Question 2

What are the stages of the cell cycle?

Answer 2

1. Interphase
2. Mitosis
3. Cytokinesis

Each stage plays a vital role in preparing the cell for division.

Question 3

What occurs during the G1 phase of Interphase?

Answer 3

Cell growth and normal function

This phase is critical for preparing the cell for DNA replication.

Question 4

What happens during the S phase of Interphase?

Answer 4

DNA replication

This phase ensures that each daughter cell receives an identical set of chromosomes.

Question 5

What is the purpose of the G2 phase in Interphase?

Answer 5

Preparation for mitosis

The cell checks for DNA damage and ensures all necessary proteins are present.

Question 6

What is Mitosis?

Answer 6

Division of the nucleus

Mitosis is essential for cell division and involves several phases.

Question 7

List the phases of Mitosis.

Answer 7

• Prophase
• Metaphase
• Anaphase
• Telophase

Each phase has specific events that ensure proper chromosome segregation.

Question 8

What occurs during Prophase?

Answer 8

Chromosomes condense and spindle fibers form

This marks the beginning of mitosis.

Question 9

What happens during Metaphase?

Answer 9

Chromosomes align at the cell’s equator

This alignment is crucial for the equal distribution of chromosomes.

Question 10

What is Anaphase?

Answer 10

Chromosomes are pulled apart to opposite sides

This ensures that each daughter cell will have the correct number of chromosomes.

Question 11

What occurs during Telophase?

Answer 11

Nuclear membranes form around each set of chromosomes

This marks the near end of mitosis.

Question 12

What is Cytokinesis?

Answer 12

Division of the cytoplasm resulting in two daughter cells

This process follows mitosis and completes cell division.

Question 13

What are checkpoints in the cell cycle?

Answer 13

Regulatory points that ensure the cell is ready to proceed to the next phase

Checkpoints help prevent errors that could lead to cancer.

Question 14

True or False: Cancer can occur when cell cycle regulation is disrupted.

Answer 14

True

Disruption can lead to uncontrolled cell division.

Question 15

Fill in the blank: The cell cycle includes _______ phase, which is responsible for DNA replication.

Answer 15

S

The S phase is critical for ensuring genetic material is copied accurately.