Cell Cycle

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Cell Cycle. There are 3 parts of Interphase: G1 - The cell grows S - The cell copies its DNA (synthesis) G2 - The cell checks its systems before dividing. Interphase. MITOSIS. Start with one cell - PowerPoint PPT Presentation

Transcript of Cell Cycle

Page 1: Cell Cycle
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Cell Cycle

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Interphase

• There are 3 parts of Interphase:– G1 - The cell grows– S - The cell copies its DNA (synthesis)– G2 - The cell checks its systems

before dividing

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MITOSIS

• Start with one cell• Ends with two new cells that are identical to the

original cell (with the same number of chromosomes)• New cells are called daughter cells

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Cell Cycle

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CANCERuncontrolled cell division

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Meiosis

• Meiosis is a special process of cell division that results in the formation of gamete cells (sperm and egg)

• Each gamete cell has only half the number of chromosomes as the original parent cell.

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Principles of Meiosis

• Independent Assortment – chromosomes separate into gamete cells “independently” of each other. The result is that each gamete cell has a different set of the parent’s chromosomes.

• Crossing Over – chromosomes can trade genes among themselves, so that a gene on one chromosome can end up on a different chromosome.

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Independent Assortment

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Crossing Over


Cell Cycle - Sprague High Schoolspraguehs.com/staff/wanak_jeremy/notes/Mitosis notes.pdf · Cell Cycle Limits to Cell Size The Cell Cycle Regulating the Cell Cycle. Limits to cell

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1 The Cell Cycle The life cycle of a cell is called the cell cycle. The cell cycle begins when the cell is formed and ends when the cell divides and forms.

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Lesson 1 Reading Guide What are the phases of the cell cycle? Why is the result of the cell cycle important? The Cell Cycle and Cell Division Cell cycle.

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CELL DIVISION CELL CYCLE - MWIT · CELL DIVISION & CELL CYCLE Ms.Tanyaratana Dumkua Biology Department, MahidolWittayanusorn School

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