The document describes the morphological phases of cell division: prophase where chromosomes condense and the nuclear envelope breaks down; prometaphase where the mitotic spindle forms and attaches to centromeres; metaphase where chromosomes align at the center; anaphase where chromatids are pulled apart by spindle fibers to opposite sides; and telophase where chromosomes reach the poles and the nuclear envelope reforms completing cell division.

1. Morphological
phases
Dividing phase
- prophase
- Cytokines
- PROMETAPHASE
- Metaphase
- Anaphase
- Telophase
Seif El-Badawy
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2.  phosphorylation of nuclear lamins by M-CDK causes
direct access to the genetic material of the cell.
Nuclear envelope
Breaks to vesicles

3.  Chromosomes line up at
the center of the cell
 Spindle fibres attach to
centromeres on the
chromosomes
 Types of microtubules :
1) Kinetochore
 2) interpolar
 3) astral

4.  Spindle fibers contract
and pull chromosomes
apart
 ½ of each
chromosome
(called a chromatid)
moves to each
hemisphere

5.  Chromosomes arrive at
the cell poles
 Mitotic spindle
disappears
 Fragments of nuclear
membrane assembles
Re-forming
Nuclear envelope
Polar
microtubules
Decondensing
chromosomes

6. CYTOKINESIS :
Cleavage furrow
Contractile ring