Understanding Cell Division: Mitosis and Meiosis Quiz

Which phase of mitosis is characterized by the alignment of chromosomes at the cell's equator?

• Prophase

• Metaphase

• Anaphase

• Telophase

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

• G1 phase

• S phase

• G2 phase

• M phase

What is the main difference between mitosis and meiosis in terms of the number of daughter cells produced?

• Mitosis produces 2 daughter cells, while meiosis produces 4.

• Mitosis produces 4 daughter cells, while meiosis produces 2.

• Both produce 2 daughter cells.

• Both produce 4 daughter cells.

Why is meiosis important for sexual reproduction?

• It increases the number of chromosomes in the gametes.

• It reduces the chromosome number by half in the gametes, ensuring genetic diversity.

• It duplicates the chromosomes in the gametes.

• It ensures that all gametes are genetically identical.

Which of the following contributes to genetic variation during meiosis?

• DNA replication

• Independent assortment

• Cytokinesis

• Chromosome duplication

In which phase of mitosis do sister chromatids separate and move to opposite poles?

• Prophase

• Metaphase

• Anaphase

• Telophase

What is the role of the spindle fibers during mitosis?

• They duplicate the DNA.

• They break down the nuclear membrane.

• They help in the alignment and separation of chromosomes.

• They synthesize RNA.

How does the cell cycle regulation prevent cancer?

• By speeding up cell division

• By allowing unlimited cell division

• By stopping the cell cycle if DNA is damaged

• By removing all checkpoints

What is a key feature of chromosomes during metaphase of mitosis?

• They are replicated.

• They are invisible.

• They align at the cell's equator.

• They are enclosed in the nucleus.

During which phase of meiosis does crossing over occur, leading to genetic variation?

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I