Understanding Cell Division

What are the four main stages of mitosis?

• Interphase, Cytokinesis, Prophase, Telophase

• Prophase, Anaphase, Cytokinesis, Metaphase

• Metaphase, Telophase, Interphase, Anaphase

• Prophase, Metaphase, Anaphase, Telophase

During which phase of the cell cycle does DNA replication occur?

• G1 phase

• M phase

• S phase

• G2 phase

What is the purpose of mitosis in cell division?

• To facilitate protein synthesis

• To reduce the number of chromosomes in a cell

• The purpose of mitosis in cell division is to produce two identical daughter cells for growth and repair.

• To create energy for the cell

Name the phase of mitosis where chromosomes align at the cell's equator.

• Telophase

• Prophase

• Anaphase

• Metaphase

What happens during anaphase of mitosis?

• Chromosomes align at the cell equator.

• Nuclear envelope begins to reform.

• Sister chromatids are separated and move to opposite poles of the cell.

• Cytoplasm divides into two separate cells.

Which phase of the cell cycle is the longest?

• Interphase

• Prophase

• Telophase

• Metaphase

What is the role of the spindle fibers during mitosis?

• Spindle fibers help in the synthesis of proteins.

• Spindle fibers assist in DNA replication.

• Spindle fibers help separate and move chromosomes during mitosis.

• Spindle fibers are responsible for cell membrane formation.

Describe the events that occur during telophase.

• Telophase is the stage where chromosomes de-condense, nuclear envelopes reform, and nucleoli reappear.

• Spindle fibers attach to the centromeres of chromosomes.

• Chromosomes are replicated and aligned at the equator.

• The cell membrane begins to split into two separate cells.

What is the difference between cytokinesis in plant and animal cells?

• Cytokinesis in plant cells forms a cleavage furrow, while in animal cells, a cell plate forms.

• Cytokinesis in animal cells involves the formation of a cell wall, while in plant cells, a cleavage furrow forms.

• Cytokinesis in animal cells uses a cleavage furrow, while in plant cells, a cell plate forms.

• Both plant and animal cells form a cell plate during cytokinesis.

What are the checkpoints in the cell cycle and their significance?

• M checkpoint ensures cell division occurs without energy consumption

• G1, G2, and S checkpoints focus on nutrient absorption

• The checkpoints in the cell cycle are G1, G2, and M checkpoints, which ensure proper cell growth, DNA integrity, and chromosome alignment.

• G1, G2, and M checkpoints are only relevant in prokaryotic cells