Chromosomes contain stretches of DNA called genes

10. Mitosis
Cell division where the replicated chromosomes are
separated into two, genetically identical daughter cells.
Occurs in four (4) stages:
1. Prophase
2. Metaphase
3. Anaphase; and
4. Telophase

11. Prophase
 In prophase, the chromosomes condense and are now visible
under a microscope.
 A chromosome consists of two sister chromatids attached to the
single centromere.
 In the late part of prophase, the nuclear envelope and the
nucleolus disappear.
 The kinetochore, a special protein complex, appears at the
centromere. The function of the kinetochore is to link the spindle
fibers to the centromere.

12. Metaphase
 The kinetochore microtubule directs the chromosomes
toward the center of the cell in the area that is called
the Metaphase Plate or the Equatorial Plate.
Anaphase
 kinetochore microtubule of the spindle fiber separate and
move the sister chromatids towards the opposite poles of
the cell
 Polar microtubules begin to elongate, while the astral pull
them on the other side which results in the poles moving
farther apart from each other.
 Cytokinesis starts here.

13. Telophase
 Chromosomes uncoil
 Nucleolus and nuclear envelope reappear.