Cell Cycle Quiz

What is the primary function of the G2 phase in the cell cycle?

• DNA replication

• Preparation for cell division

• Cell division

• Chromosome duplication

Which phase involves the division of a cell nucleus and chromosomes into two nuclei?

• Interphase

• Cytokinesis

• Mitosis

• G0 phase

What is the result of mitosis followed by cytokinesis?

• Four non-identical daughter cells

• Two identical daughter cells

• Two non-identical daughter cells

• Four identical daughter cells

What are the two DNA molecules in a chromosome called?

• Chromatids

• Centromeres

• Spindle fibers

• Asters

What is the role of the enzyme separase during anaphase?

• It cuts each centromere in half.

• It creates a new nuclear membrane.

• It forms spindle fibers.

• It duplicates DNA molecules.

During telophase, what happens to the chromosomes?

• They form spindle fibers.

• They gather around each centriole and decondense.

• They duplicate again.

• They condense into a single structure.

What is cytokinesis?

• The division of the nucleus during cell division

• The formation of a new cell membrane

• The division of the cytoplasm into two parts

• The process of DNA replication

What role do myosin proteins play during cytokinesis?

• They replicate DNA

• They initiate apoptosis

• They pull on actin filaments, causing them to shorten

• They form a new cell wall

What is a cleavage furrow?

• A groove that forms around the middle of the cell during cytokinesis

• A protein involved in DNA repair

• A mutation in the DNA sequence

• A type of cancer cell

What is cancer in terms of cell division?

• Controlled division of normal cells

• The repair of damaged DNA

• The process of apoptosis

• Uncontrolled division and growth of abnormal cells