The Cell Cycle and Mitosis

Front

What is the cell cycle?

Back

The cell cycle is the series of events that take place in a cell leading to its division and duplication (replication). It consists of interphase (G1, S, G2 phases) and mitotic phase (mitosis and cytokinesis).

Front

What occurs during the G1 phase of interphase?

Back

During the G1 phase, the cell grows and synthesizes proteins necessary for DNA replication.

Front

What occurs during the S phase of interphase?

Back

During the S phase, DNA replication occurs, resulting in the duplication of chromosomes.

Front

What occurs during the G2 phase of interphase?

Back

During the G2 phase, the cell prepares for cell division by producing proteins and organelles needed for mitosis.

Front

What are sister chromatids?

Back

Sister chromatids are the two identical copies of a chromosome that are connected by a centromere after DNA replication.

Front

What is mitosis?

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells from a single parent cell.

Front

What are the phases of mitosis?

Back

The phases of mitosis are prophase, metaphase, anaphase, and telophase.

Front

What happens during prophase?

Back

During prophase, chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and spindle fibers begin to form.

Front

What happens during metaphase?

Back

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

Front

What happens during anaphase?

Back

During anaphase, sister chromatids are pulled apart to opposite poles of the cell.