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1 1 Asexual Reproduction Mitosis Mitosis is the process in which the nucleus divides to form two new nuclei.

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Presentation on theme: "1 1 Asexual Reproduction Mitosis Mitosis is the process in which the nucleus divides to form two new nuclei."— Presentation transcript:

1 1 1 Asexual Reproduction Mitosis Mitosis is the process in which the nucleus divides to form two new nuclei.

2 How do little elephants grow up to be BIG elephants?

3

4 The process of asexual reproduction begins after a sperm fertilizes an egg.

5 Cell that reproduce by asexual reproduction reproduce constantly.

6 Animated Mitosis Cycle http://www.cellsalive.com/mitosis.htm Interphase Prophase Metaphase Anaphase Telophase & Cytokinesis

7 Chromosomes are copied (# doubles) Chromosomes appear as threadlike coils (chromatin) at the start, but each chromosome and its copy(sister chromosome) change to sister chromatids at end of this phase CELL MEMBRANE Nucleus Cytoplasm

8 Mitosis begins (cell begins to divide) Centrioles (or poles) appear and begin to move to opposite ends of the cell. Spindle fibers form between the poles. Centrioles Sister chromatids Spindle fibers

9 Chromatids (or pairs of chromosomes) attach to the spindle fibers. Centrioles Spindle fibers

10 Chromatids (or pairs of chromosomes) separate and begin to move to opposite ends of the cell. Centrioles Spindle fibers

11 Two new nuclei form. Chromosomes appear as chromatin (threads rather than rods). Mitosis ends. Nuclei Chromatin

12 Cell membrane moves inward to create two daughter cells – each with its own nucleus with identical chromosomes.

13 I Interphase P Prophase M Metaphase A Anaphase T Telophase C Cytokinesis IPMATC I Play M ore Atari T han Chess


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