Understanding the Cell Cycle and Mitosis

Which phase of the cell cycle is characterized by the cell growing and preparing for DNA replication?

• G1 phase

• S phase

• G2 phase

• M phase

During which phase of mitosis do the chromosomes align at the cell's equator?

• Prophase

• Metaphase

• Anaphase

• Telophase

What is the primary importance of mitosis in multicellular organisms?

• Sexual reproduction

• Growth and tissue repair

• Variation in offspring

• Decreasing the cell size

In which stage of the cell cycle does DNA replication occur?

• G1 phase

• S phase

• G2 phase

• M phase

What is the result of mitosis in terms of the genetic material of the daughter cells?

• The daughter cells have half the number of chromosomes of the parent cell.

• The daughter cells have a different genetic makeup from each other and the parent cell.

• The daughter cells have the same number and type of chromosomes as the parent cell.

• The daughter cells have more chromosomes than the parent cell.

Why is mitosis important for repair in multicellular organisms?

• It introduces genetic variation necessary for evolution.

• It reduces the number of chromosomes in damaged cells.

• It replaces damaged cells with identical ones to maintain tissue function.

• It increases the size of damaged cells for better performance.

Which of the following correctly lists the stages of mitosis in order?

• Prophase, Metaphase, Anaphase, Telophase

• Metaphase, Prophase, Anaphase, Telophase

• Anaphase, Metaphase, Prophase, Telophase

• Telophase, Anaphase, Metaphase, Prophase

What role does the G2 phase play in the cell cycle?

• Cell growth and preparation for DNA replication

• DNA replication

• Preparation for mitosis

• Division of the cytoplasm

During which phase of mitosis do the sister chromatids separate and move to opposite poles of the cell?

• Prophase

• Metaphase

• Anaphase

• Telophase

How does mitosis contribute to the growth of an organism?

• By reducing the chromosome number in each cell

• By increasing genetic diversity among cells

• By producing identical daughter cells that increase the number of cells

• By changing the function of existing cells