mitosis notes -...

Mitosis Notes Mitosis: cells can divide!

cell

nucleus

chromosome

Chromosome: a long coiled piece of DNA

Centromere

Sisterchromatids

Humans have 46 chromosomes.

A

B

C

D

E

F

MitosisProphaseMetaphaseAnaphaseTelophase

Cytokinesis

A1 A2

B1 B2C1 C2

D1 D2E1 E2

F1 F2

A1 A2Mitosis is the duplication of a cell into 2 identical daughter cells. There are 4 stages.

B1

Prophase

B21. DNA threads condense into chromosomes.2. Spindle fibers begin to form.3. The nuclear membrane (skin) breaks down.

C1

Metaphase

C2The chromosomes line up across the center of the cell. Each chromosome is connected to a spindle fiber at its centromere.

D1

Anaphase

D2The sister chromatids separate into individual chromosomes and are moved apart.

E1

Telophase

E21. The chromosomes gather at opposite ends of the cell and lose their shapes.2. Two new nuclear membranes will form.

F1

Cytokinesis

F2The cell pinches in half.Each daughter cell has an individual set of chromosomes.

What part(s) of a plant grows fastest?

Brain pop!

http://www.youtube.com/watch?v=ZEwddr9ho-4

Mitosis Match-up!

http://www.youtube.com/watch?v=aDAw2Zg4IgE

http://www.youtube.com/watch?v=gEwzDydciWc&list=PL3aBfcrBmwCgGMj5ofFCGWgb42drvZgGj

http://www.youtube.com/watch?v=NVfqzSKa_Bg&list=PL3aBfcrBmwCgGMj5ofFCGWgb42drvZgGj

http://www.youtube.com/watch?v=YmTgm-3nkPg&list=PL3aBfcrBmwCgGMj5ofFCGWgb42drvZgGj&index=2

http://www.youtube.com/watch?v=70pUYF0mUhw