Zoo-352 Principles of genetics Lecture 3 The cell cycle and its checkpoints.

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Zoo-352 Principles of genetics Lecture 3 The cell cycle and its checkpoints

The cell cycle The interval time between each mitotic cell division is termed a cell cycle. The cell cycle consists of two basic stages: interphase and M phase. Interphase can be subdivided into three ordered stages: G1 (Gap 1), S (DNA synthesis) and G2 (Gap 2). S phase: where the DNA replication occurs M phase: where the cell is ready to divide into 2 daughter cells. In the G1 phase, the cell is growing and also preparing for the process of DNA replication. in the G2, the cell prepares for the process of division.

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The cell cycle checkpoints There are three major checkpoints in the cell cycle

x/student_view0/chapter3/control_o f_the_cell_cycle.html

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