Post on 05-Oct-2020
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