Mitosis, Meiosis, and Cell Cycle

What is Meiosis?

• A type of cell division that reduces the chromosome number by half, resulting in four genetically diverse gametes.

• A process of DNA replication that occurs before cell division.

• A method of asexual reproduction in unicellular organisms.

• A stage of mitosis where chromosomes are aligned in the center of the cell.

What is the purpose of the cell cycle?

• To facilitate cell growth, DNA replication, and cell division for proper development and maintenance of organisms.

• To promote apoptosis and eliminate damaged cells from the organism.

• To enhance the immune response and protect against pathogens.

• To regulate metabolic processes and energy production within the cell.

What is the difference between Mitosis and Meiosis?

• Mitosis produces two identical daughter cells, while Meiosis produces four genetically diverse gametes.

• Mitosis occurs in somatic cells, while Meiosis occurs in all types of cells.

• Mitosis results in genetic variation, while Meiosis does not.

• Mitosis is a type of sexual reproduction, while Meiosis is a type of asexual reproduction.

During which phase are chromosomes aligned at the cell's equator?

• Prophase

• Metaphase

• Anaphase

• Telophase

What is the role of the G1 phase in the cell cycle?

• The G1 phase is the first stage of interphase where the cell grows and prepares for DNA replication.

• The G1 phase is when the cell divides into two daughter cells.

• The G1 phase is responsible for the synthesis of proteins needed for cell division.

• The G1 phase is the final stage of the cell cycle before the cell enters mitosis.

What is the end product of Mitosis?

• Two identical daughter cells.

• Four genetically diverse daughter cells.

• One diploid cell.

• Two haploid cells.

What is Telophase?

• The stage of mitosis where chromosomes align at the cell's equator.

• The final stage of mitosis where the chromosomes de-condense and the nuclear envelope re-forms around each set of chromosomes.

• The phase of cell division where the cytoplasm divides into two daughter cells.

• The initial stage of mitosis where the chromosomes become visible.

What is genetic variation?

• Differences in DNA sequences among individuals that can lead to different traits.

• The process by which organisms adapt to their environment over time.

• The study of how traits are passed from parents to offspring.

• The total number of genes in a population.

What is the correct order of the cell cycle?

• Interphase (G1, S, G2), Mitosis (M), Cytokinesis (C)

• Mitosis (M), Interphase (G1, S, G2), Cytokinesis (C)

• Cytokinesis (C), Interphase (G1, S, G2), Mitosis (M)

• Interphase (G1, S, G2), Cytokinesis (C), Mitosis (M)

What is the significance of crossing over in Meiosis?

• It leads to genetic variation by exchanging genetic material between homologous chromosomes.

• It ensures that all daughter cells are identical to the parent cell.

• It is a process that occurs only in mitosis.

• It prevents genetic variation by maintaining the same genetic material.