Mitosis

1
Mitosis
http//genetics.gsk.com/graphics/mitosis-big.gif
2
Mitosis

• Nucleus divides to form two nuclei.
• Spindles cell structures made up of both
  centrioles and individual microtubule fibers that
  move the chromosomes

3
Cell Cycle

• Interphase
• Prophase
• Metaphase
• Anaphase
• Telophase
• Cytokinesis

4
Prophase

• Chromosomes become visible
• Nuclear membrane dissolves
• Spindle forms

5
Metaphase

• Chromosomes line up along equator
• Spindles link the chromatids of each chromosome
  to opposite poles.

6
Anaphase

• Centromere divides.
• Chromatids move toward opposite poles.
• The chromatids are now called chromosomes.

7
Telophase

• Nuclear membrane forms at each pole.
• Chromosomes uncoil.
• Spindle dissolves.
• Cytokinesis begins.

8
Cytokinesis

• Cell membrane is pinched in half by a belt of
  protein threads.
• The cytoplasm is divided in half.
• The cell membrane grows to enclose each cell,
  forming two separate cells.

9
and cytokinesis
http//www.dartmouth.edu/cbbc/courses/bio4/bio4-1
997/images/mitosis.JPG
10
http//people.cornell.edu/pages/bw28/mitosis.jpg
11

• www.cellsalive.com

12

• http//www.youtube.com/watch?vCzPGhYiGyZ8
• http//www.youtube.com/watch?vVlN7K1-9QB0
• http//www.youtube.com/watch?vs1ylUTbXyWU

13
Body Cell vs. Sex Cell Division
http//post.queensu.ca/forsdyke/images/darwin04.g
if