2' Nuclear membrane breaks down nucleolus disappears

1

• 2. Nuclear membrane breaks down nucleolus
  disappears
• 3. Spindle begins to form

2

• 4. Appearance of cell in prophase

3

• b. Metaphase
• 1. Chromosomes line up in the center of the
  cell
• 2. Spindle fibers attach to sister
  chromatids at the centromere

4

• 3. Appearance of the cell in metaphase

5

• c. Anaphase
• 1. Sister chromatids separate into
  individual chromosomes
• 2. Chromosomes are pulled apart to opposite
  ends of the cell

6

• 3. Appearance of the cell in anaphase

7

• d. Telophase
• 1. New nuclear envelopes form nucleolus
  reappears
• 2. Spindle breaks down

8

• 3. Appearance of cell in telophase

9

• 2. Cytokinesis division of the
  cytoplasm
• a. In animal cells, cell membrane pinches
  inward