Mastering the Cell Cycle: Mitosis and Cytokinesis

What is the correct order of the stages in the cell cycle?

• G1 → S → G2 → Mitosis → Cytokinesis

• S → G1 → G2 → Cytokinesis → Mitosis

• G2 → S → G1 → Mitosis → Cytokinesis

• Mitosis → Cytokinesis → G1 → S → G2

During which phase of mitosis do the chromosomes line up in the middle of the cell?

• Prophase

• Metaphase

• Anaphase

• Telophase

What is the main event that occurs during anaphase?

• Nuclear membrane dissolves

• Chromosomes duplicate

• Sister chromatids separate

• Nuclear membrane re-forms

Which stage of the cell cycle is characterized by cell growth and normal metabolic roles?

• G1 phase

• S phase

• G2 phase

• M phase

What happens during the S phase of the cell cycle?

• Cell division

• DNA replication

• Chromosome alignment

• Cytokinesis

In which phase of mitosis does the nuclear envelope reappear and the chromosomes begin to decondense?

• Prophase

• Metaphase

• Anaphase

• Telophase

Cytokinesis usually begins during which phase of mitosis?

• Prophase

• Metaphase

• Anaphase

• Telophase

Which of the following is NOT a correct pairing of a cellular structure and its function during cytokinesis in animal cells?

• Actin filaments – forming the contractile ring

• Microtubules – separating sister chromatids

• Cleavage furrow – dividing the cell into two

• Nuclear envelope – forming around the chromosomes

What is the role of the spindle fibers during mitosis?

• They duplicate the DNA.

• They break down the nuclear envelope.

• They help in the alignment of chromosomes.

• They divide the cytoplasm.

Which of the following statements is true about cytokinesis in plant cells?

• It involves the formation of a cleavage furrow.

• It is identical to cytokinesis in animal cells.

• It involves the formation of a cell plate.

• It does not involve the Golgi apparatus.