1. Three reasons why cells reproduce by asexual reproduction: 1. Growth 2
Three reasons why cells reproduce by asexual reproduction: Growth Repair Replacement
Skin cancer - the abnormal growth of skin cells - most often develops on skin exposed to the sun.
Cell that reproduce by asexual reproduction reproduce constantly.

2. Animated Mitosis Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase & Cytokinesis

3. Interphase occurs before mitosis begins
Cell is doing all other activities (growth, specilalized functions)
Chromosomes (we have 46 of them) appear as threadlike coils (chromatin) at the start, the chromatin is copied (duplicated – so there are 92) to prepare for cell division
Other organelles are also copied
Centrioles are copied
Centrioles
CELL MEMBRANE
Nucleus
Cytoplasm

4. Interphase Plant Cell Animal Cell
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5. Prophase Chromatin thickens/condenses into chromosomes
Each chromosome (because it was copied already) consists of 2 identical stands called sister chromatid
These are held together by a centrometre
The nuclear membrane dissolves
Centrioles (or poles) begin to move to opposite end of the cell.
Spindle fibers form between the poles.
Centrioles
Sister chromatids
Spindle fibers

6. Prophase Plant Cell Animal Cell Spindle fibers Centrioles
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7. Metaphase
Chromatids (or pairs of chromosomes) attach to the spindle fibers.
Chromosomes line up in the middle plane of the cell
Centrioles
Spindle fibers

8. Metaphase Plant Cell Animal Cell
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9. Anaphase
Chromatids (or pairs of chromosomes) separate and begin to move to opposite ends of the cell by being pulled by the spindle fibers contracting to the centrioles
The split sister chromatids are called daughter chromosomes
Centrioles
Spindle fibers

10. Anaphase Plant Cell Animal Cell
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11. Telophase
Two new nuclei (nuclear membranes) form around the daughter chromosomes.
Chromosomes appear as chromatin (threads rather than rods).
Mitosis ends.
Nuclei
Nuclei
Chromatin

12. Telophase Plant Cell Animal Cell
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13. Cytokinesis occurs after mitosis
Cell membrane moves inward (is pinched) to create two daughter cells – each with its own nucleus with identical chromosomes in an animal cell
In a plant cell, a new cell wall forms and divides into two daughter cells.

14. Animal Mitosis -- Review
Interphase                                                             
Prophase                                                             
Metaphase                                                             
Anaphase                                                             
Telophase                                                             

15. Plant Mitosis -- Review
Interphase                                                             
Prophase                                                             
Metaphase                                                             
Anaphase                                                             
Telophase                                                             

16. Cell Cycle