Cell cycle, mitosis, and cancer

Front

What is a chromatid?

Back

A chromatid is one half of a duplicated chromosome, which is joined to the other half by a centromere.

Front

What happens during the anaphase stage of mitosis?

Back

During anaphase, the sister chromatids are pulled apart and move to opposite ends of the cell.

Front

Identify the stage of mitosis where chromosomes line up in the middle of the cell.

Back

Metaphase.

Front

What is interphase?

Back

Interphase is the phase of the cell cycle where the cell spends most of its life, preparing for mitosis by growing and replicating its DNA.

Front

What occurs during prophase?

Back

During prophase, the nucleolus and nuclear membrane disappear, chromatin condenses into chromosomes, and spindle fibers begin to form.

Front

What is the role of the centromere?

Back

The centromere is the region of a chromosome where the two sister chromatids are joined together.

Front

What is the difference between mitosis and cytokinesis?

Back

Mitosis is the process of nuclear division, while cytokinesis is the division of the cytoplasm, resulting in two separate cells.

Front

What is cancer in relation to the cell cycle?

Back

Cancer is a disease characterized by uncontrolled cell division, often due to mutations in genes that regulate the cell cycle.

Front

What is the significance of spindle fibers during mitosis?

Back

Spindle fibers are essential for separating sister chromatids and ensuring that each new cell receives the correct number of chromosomes.

Front

What happens during telophase?

Back

During telophase, the chromosomes reach the opposite poles, begin to de-condense, and the nuclear membrane re-forms around each set of chromosomes.