Question

1. label and match the descriptions of the major phases of the somatic cell cycle.

1. what is occurring during each phase of mitosis?

match the picture to the proper phase.

1. describe the need for somatic cells to go through checkpoints during the cell cycle?

1. how are cancer and the cell cycle related?

Explanation:

Question 26:

Step1: Analyze Interphase

Interphase is the period of growth, normal functioning, growth, and DNA replication. So Interphase matches with C.

Step2: Analyze Mitosis (M Phase)

Mitosis is the period of division: separation of the nuclear material. So Mitosis (M Phase) matches with B.

Step3: Analyze Cytokinesis

Cytokinesis is the period of separation: division of cytoplasm and all cell organelles. So Cytokinesis matches with D.

Step4: Analyze Daughter Cells

Daughter cells are the end product of identical cells. So Daughter Cells match with A.

Step1: Analyze Prophase

Prophase is when chromosomes condense and become visible, and the nuclear envelope starts to break down. The picture with two condensed chromosomes (Picture D) matches Prophase. So Prophase - D.

Step2: Analyze Metaphase

Metaphase is when chromosomes line up at the equator of the cell. The picture with chromosomes lined up in the middle (Picture C) matches Metaphase. So Metaphase - C.

Step3: Analyze Anaphase

Anaphase is when sister chromatids are pulled apart to opposite poles. The picture with chromatids moving apart (Picture A) matches Anaphase. So Anaphase - A.

Step4: Analyze Telophase

Telophase is when the cell starts to divide, with two sets of chromosomes at opposite poles. The picture with two sets of chromosomes (Picture B) matches Telophase. So Telophase - B.

Checkpoints in the cell cycle (like G1, G2, and M checkpoints) ensure that the cell has properly replicated DNA, has enough resources, and that chromosome segregation during mitosis is accurate. They prevent the cell from proceeding to the next phase if there are errors (e.g., damaged DNA, improper chromosome alignment), thus maintaining genomic stability and preventing the formation of abnormal cells.

Answer:

Interphase - C; Mitosis (M Phase) - B; Cytokinesis - D; Daughter Cells - A

Question 27: