Cell Cycle, Mitosis and Meiosis

In humans, a diploid cell contains 46 chromosomes. How many chromosomes would be found in a haploid cell produced through meiosis?

• 46

• 23

• 92

• Varies depending on the cell type

What is the primary function of mitosis in multicellular organisms?

• To produce genetically diverse gametes.

• To create new body cells for growth and repair.

• To reduce the chromosome number by half.

• To facilitate sexual reproduction.

Which of the following phases are collectively known as interphase in the cell cycle?

• Mitosis, G1, and G2

• G1, S, and G2

• S, M, and G0

• G0, G1, and M

What is the G0 phase of the cell cycle, and which cell types commonly enter this phase?

• A phase of rapid cell division; skin cells.

• A resting phase where cells do not divide; nerve and muscle cells.

• The phase where DNA replication occurs; liver cells.

• The phase where cells prepare for mitosis; bone marrow cells.

What is the primary function of cyclins in the cell cycle?

• To directly synthesize DNA during the S phase.

• To act as structural components of the cell membrane.

• To regulate the progression of the cell through different stages.

• To break down waste products within the cell.

What type of molecule is a Cyclin Dependent Kinase (CDK) and what is its general role?

• A lipid that stores energy.

• A carbohydrate that provides structural support.

• A protein that speeds up actions within a cell.

• A nucleic acid that carries genetic information.

What is the primary role of the Mitosis Promoting Factor (MPF) complex during the cell cycle?

• To initiate DNA replication.

• To promote cell growth during the G1 phase.

• To trigger events that lead to cell division in the M phase.

• To repair damaged DNA.

How do mitosis and meiosis differ in terms of the number and genetic content of daughter cells produced from a diploid parent cell?

• Mitosis produces four haploid cells, while meiosis produces two diploid cells.

• Mitosis produces two diploid cells identical to the parent, while meiosis produces four haploid cells with genetic variation.

• Mitosis produces two haploid cells, while meiosis produces four diploid cells.

• Mitosis produces four diploid cells, while meiosis produces two haploid cells.