Chromosomes, Cell Cycle, and Mitosis (SI)

Front

What is a chromosome?

Back

A chromosome is DNA tightly coiled around proteins, which helps in organizing and managing genetic information.

Front

How many chromosomes do human cells have?

Back

Human cells typically have 46 chromosomes.

Front

What is the purpose of mitosis?

Back

Mitosis is the process of cell division that results in two identical daughter cells, each with the same number of chromosomes as the parent cell.

Front

What happens during prophase?

Back

During prophase, the chromatin condenses into visible chromosomes, the nuclear envelope begins to break down, and the mitotic spindle starts to form.

Front

What occurs during metaphase?

Back

During metaphase, chromosomes align at the cell's equatorial plane, and spindle fibers attach to the centromeres of the chromosomes.

Front

What is anaphase?

Back

Anaphase is the stage of mitosis where sister chromatids are pulled apart to opposite sides of the cell.

Front

What happens during telophase?

Back

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

Front

What is interphase?

Back

Interphase is the phase of the cell cycle where the cell prepares for division, including DNA replication and growth.

Front

What is cancer?

Back

Cancer is a group of diseases characterized by uncontrolled cell growth, often due to mutations in genes that regulate the cell cycle.

Front

What is the role of spindle fibers in mitosis?

Back

Spindle fibers help separate the chromosomes during mitosis by attaching to the centromeres and pulling the sister chromatids apart.