Cell Cycle and Cancer

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What is the cell cycle?

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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 phases) and the mitotic phase (mitosis and cytokinesis).

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What happens during cytokinesis?

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Cytokinesis is the final stage of the cell cycle where the cytoplasm of a parental cell divides into two daughter cells, resulting in two identical cells.

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What is interphase?

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Interphase is the longest phase of the cell cycle, during which the cell grows, duplicates its DNA, and prepares for mitosis. It consists of G1, S, and G2 phases.

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What occurs during the G1 phase?

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

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What is the S phase?

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The S phase (synthesis phase) is the part of interphase where DNA is replicated, resulting in two identical sets of chromosomes.

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What happens during the G2 phase?

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During the G2 phase, the cell continues to grow and produces proteins and organelles, preparing for mitosis.

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What is mitosis?

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Mitosis is the process of nuclear division in which a single cell divides to produce two identical daughter nuclei, each with the same number of chromosomes as the parent cell.

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How many chromosomes do fruit fly daughter cells have after mitosis?

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Fruit fly daughter cells have 8 chromosomes after mitosis, the same number as the parent cell.

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What is the role of checkpoints in the cell cycle?

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Checkpoints are regulatory mechanisms in the cell cycle that ensure proper division and prevent errors, such as DNA damage or incomplete replication.

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What is cancer in relation to the cell cycle?

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