Mitosis and Cytokinesis Mitosis During mitosis the cells

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Mitosis and Cytokinesis

Mitosis and Cytokinesis

Mitosis • During mitosis, the cells’ copied genetic material separates and the cell prepares

Mitosis • During mitosis, the cells’ copied genetic material separates and the cell prepares to split into two cells • This allows the cell’s genetic material to pass into the new cells • The resulting daughter cells are genetically identical!!

Where Do I Find DNA? • Chromosomes are in the nucleus of every cell.

Where Do I Find DNA? • Chromosomes are in the nucleus of every cell. • Chromosomes are made up of DNA. • Genes are pieces of DNA that contain the instructions for building a protein.

The Four Stages of Mitosis • Remember PMAT! • Prophase • Metaphase • Anaphase

The Four Stages of Mitosis • Remember PMAT! • Prophase • Metaphase • Anaphase • Telophase

Prophase • Nucleus disappears • Spindle fibers form in the cytoplasm • Spindle fibers

Prophase • Nucleus disappears • Spindle fibers form in the cytoplasm • Spindle fibers attach to sister chromatids

Metaphase • The sister chromatids are pulled to the center of the cell •

Metaphase • The sister chromatids are pulled to the center of the cell • They line up in the middle of the cell

Anaphase • Spindle fibers begin to shorten • The sister chromatids are pulled to

Anaphase • Spindle fibers begin to shorten • The sister chromatids are pulled to the opposite ends of the cell

Telophase • The sister chromatids arrive at the opposite poles of the cell and

Telophase • The sister chromatids arrive at the opposite poles of the cell and begin to unravel • New nucleus begins to form

Cytokinesis • Cytokinesis is the division of the cytoplasm • Results in two separate

Cytokinesis • Cytokinesis is the division of the cytoplasm • Results in two separate daughter cells with identical nuclei

Cytokinesis In animal cells, it is accomplished by using microfilaments to “pinch” the cytoplasm

Cytokinesis In animal cells, it is accomplished by using microfilaments to “pinch” the cytoplasm . In plants, a cell plate forms between the two daughter nuclei.

Real-Life Cells Dividing! Animated Mitosis

Real-Life Cells Dividing! Animated Mitosis

Mitosis Learning Checkpoint 1. Which phase do cells spend the most time? Interphase 2.

Mitosis Learning Checkpoint 1. Which phase do cells spend the most time? Interphase 2. What are the 3 stages of interphase? G 1, S, G 2 3. What kinds of cells go through mitosis? All cell except the sex cells 4. What are the 4 stages of mitosis? Prophase, Metaphase, Anaphase, Telophase 5. What is the result of mitosis? 2 identical daughter cells

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