Mitosis vs Meiosis: Key Concepts and Differences

The video tutorial by Dr. T covers the differences between mitosis and meiosis, detailing the stages of each process. It explains interphase, the phases of mitosis (prophase, metaphase, anaphase, telophase), and the similarities and differences with meiosis. The tutorial emphasizes the importance of understanding these processes for the star test and includes practice questions. A side-by-side comparison video further illustrates the concepts.

What is the primary purpose of the Gap 1 phase in the cell cycle?

• Reduction of the cell size

• Doubling the organelles

• Doubling the DNA

• Splitting of the cell

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

• Prophase

• Anaphase

• Telophase

• Metaphase

What occurs during cytokinesis in cell division?

• Chromosomes align in the center

• Cytoplasm divides

• Nuclear envelope reappears

• Chromosomes duplicate

Which phase is characterized by the separation of sister chromatids?

• Prophase

• Telophase

• Metaphase

• Anaphase

In meiosis, what is the significance of crossing over?

• It duplicates chromosomes

• It creates identical cells

• It decreases genetic diversity

• It increases genetic diversity

What is the result of meiosis compared to mitosis?

• Two non-identical diploid cells

• Four identical haploid cells

• Four non-identical haploid cells

• Two identical diploid cells

Which phase involves the chromosomes lining up along the equator in both mitosis and meiosis?

• Telophase

• Metaphase

• Prophase

• Anaphase

What is the role of spindle fibers during mitosis?

• They synthesize proteins

• They duplicate DNA

• They pull chromosomes apart

• They decrease the cell size

How does meiosis contribute to genetic diversity?

• By undergoing two rounds of genetic separation

• By creating identical cells

• By skipping the telophase

• By not allowing crossing over

What happens during the prophase stage of mitosis?

• Nuclear envelope breaks down

• Cell doubles in size

• Cytoplasm divides

• Chromosomes align in the center