cell cycle and mitosis

Front

What is the cell cycle?

Back

The cell cycle is the series of phases that a cell goes through from its formation to its division into two daughter cells. It includes interphase (G1, S, G2) and the mitotic phase (M).

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Front

What happens during the G1 phase of the cell cycle?

Back

During the G1 phase, the cell grows in size, produces RNA, and synthesizes proteins necessary for DNA replication.

Front

What occurs during the S phase of the cell cycle?

Back

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

Front

What is the purpose of the G2 phase?

Back

The G2 phase is a period of further growth and preparation for mitosis, where the cell checks for DNA damage and ensures all DNA is replicated.

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Front

What are the main stages of mitosis?

Back

The main stages of mitosis are prophase, metaphase, anaphase, and telophase.

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NGSS.HS-LS1-4

Front

What happens during prophase?

Back

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

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NGSS.HS-LS1-4

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.

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NGSS.HS-LS1-4

Front

What is anaphase?

Back

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

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NGSS.HS-LS1-4

Front

What happens during telophase?

Back

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

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Front

What is cytokinesis?

Back

Cytokinesis is the process that follows mitosis, where the cytoplasm divides, resulting in two separate daughter cells.

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