Unit 4: Cell Cycle, Mitosis, DNA

Front

What is the definition of apoptosis?

Back

Apoptosis is the process of programmed cell death that occurs in multicellular organisms.

Front

What occurs during cytokinesis?

Back

Cytokinesis is the process during cell division where the cytoplasm of a parental cell divides into two daughter cells.

Front

Which type of cells undergo mitosis?

Back

Mitosis occurs in somatic cells, which are any cells forming the body of an organism, excluding germ cells.

Front

What happens during anaphase of mitosis?

Back

During anaphase, the sister chromatids are pulled apart and move toward opposite poles of the cell.

Front

What is the purpose of the S phase checkpoint?

Back

The S phase checkpoint ensures that DNA has been accurately replicated without mutations before the cell proceeds to mitosis.

Front

What are the main stages of the cell cycle?

Back

The main stages of the cell cycle are G1 phase, S phase, G2 phase, and M phase (mitosis and cytokinesis).

Front

What is the role of cyclins in the cell cycle?

Back

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

Front

What is the difference between mitosis and meiosis?

Back

Mitosis results in two identical daughter cells, while meiosis results in four genetically diverse gametes.

Front

What is the significance of the G1 phase in the cell cycle?

Back

The G1 phase is crucial for cell growth, organelle duplication, and preparation for DNA synthesis.

Front

What is the function of the spindle apparatus during mitosis?

Back

The spindle apparatus helps separate the chromosomes during mitosis by attaching to the centromeres and pulling them apart.