Interphase• Not technically part of
mitosis• Cell spends 99% time
in this phase• DNA exists in
___________ form• Cell performs…..?
* Most important Fact …
Prophase
• Is the cell to the left a human cell?
• How many chromosomes are pictured?
• Are the chromosomes normal size or duplicated?
• Which pieces of DNA are identical to each other?
Metaphase
• The duplicated chromosomes line up along the “equator” of the cell.
• What causes them to move?
Anaphase
• Spindle fibers split the duplicated chromosomes in half.
• The identical chromatids are separated from each other…. But now they are normal sized chromosomes!
• Will the two daughter cells be genetically identical?
MITOSIS – BIG IDEAS
• Occurs in all eukaryotic organisms
• Each chromosome is copied. (how?)One copy of each chromosome is distributed to both daughter cells.
• Thus All body cells contain full set of chromosomes (therefore full set of genes)