Science 7 Quiz #4 2nd Quarter

What is the M phase of the cell cycle?

• The growth phase of the cell
• The phase where DNA replication occurs
• The phase of cell division, including mitosis and cytokinesis
• The phase of cell death

Which phases make up interphase in the cell cycle?

• Mitosis and cytokinesis
• G1, S, and G2 phases
• Prophase, metaphase, anaphase, telophase
• DNA replication only

During which phase of mitosis do chromosomes align along the equator of the cell?

• Prophase
• Metaphase
• Anaphase
• Telophase

What happens during prophase in mitosis?

• Chromosomes separate into chromatids
• Chromatin condenses into visible chromosomes, and the nuclear membrane disappears
• The cytoplasm divides into two daughter cells
• The cell grows in size

Which structures attach to chromosomes and help separate them during mitosis?

• Centrioles
• Spindle fibers
• Ribosomes
• Lysosomes

What is the main event of anaphase in mitosis?

• Chromosomes condense into chromatin
• Chromosomes are pulled apart into sister chromatids
• The cell membrane pinches inward
• DNA replication occurs

How does cytokinesis differ in plant and animal cells?

• It is the same in both cell types
• In animal cells, a cell plate forms, and in plant cells, the membrane pinches inward
• In animal cells, the membrane pinches inward, while in plant cells, a cell plate forms
• Only animal cells undergo cytokinesis

What is the result of the M phase of the cell cycle?

• Four genetically different daughter cells
• Two identical daughter cells
• Cell death
• One larger mother cell

During which phase does the nuclear membrane reform around each set of chromosomes?

• Prophase
• Metaphase
• Anaphase
• Telophase

What is the role of centrioles in mitosis?

• They form the chromosomes
• They help organize spindle fibers to separate chromosomes
• They break down the nuclear membrane
• They replicate the DNA