Mitosis revised

transcript

Cell CycleFor this Activity You will Need:

Blue Colored PencilRed Colored PencilGreen Colored PencilLead Pencil

Tuesday, November 5, 13

Goal of Mitosis

• What is the goal of mitosis? Fill the answer into the box on your graphic organizer.

Goal of Mitosis

• What is the goal of mitosis?

Goal of Mitosis

• What is the goal of mitosis?

– To create 2 new cells each with the SAME number of DNA molecules (chromosomes) as the original cell

Cell Cycle

Cell Cycle: Details

1. Interphase

1. Interphase 1. Interphase

– Cell Grows

– DNA Replicates (a copy of the DNA is made- why would this be necessary?)

2. Mitosis

2. MitosisA. Prophase (P=Prepare)

– Chromatin condenses into chromosomes

– Nuclear Membrane disappears

– Spindle fibers come out from centrioles

CENTRIOLES

2. Mitosis

B. Metaphase (M=Middle)

2. Mitosis

– Spindle fibers line duplicated chromosomes to the middle of the cell

2. Mitosis

SPINDLE FIBERS

2. Mitosis

SPINDLE FIBERS

DUPLICATED CHROMOSOMES

2. Mitosis

C. Anaphase (A=Apart)

2. Mitosis

– Duplicated chromosomes split at centromere (center of chromosome)

2. Mitosis

– Duplicated chromosomes split at centromere (center of chromosome)

– Fibers pull chromosomes to opposite ends of cell

2. Mitosis

2. MitosisD. Telophase (T=Tear)

– Chromosomes uncoil into chromatin

– Nuclear membrane reappears

– Spindle fibers disappear

3. Cytokinesis

– Cytoplasm & organelles divide

3. Cytokinesis

– Cytoplasm & organelles divide

– Cell splits into two new cells

Mitosis revised

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