1. The Cell Cycle

2. INTERPHASE : G1- cell growth, the longest part of the cell’s life
S – DNA synthesis,
DNA is copied
(replication)
G2 – cell prepares
for division,
organelles
replicate

3. MITOSIS: nuclear division
PROPHASE:
Longest phase of mitosis
DNA coils and chromosomes form, sister chromatids are held together by the centromere
Nuclear envelope and nucleolus dissolve
Centrioles migrate to the poles
Spindle forms

4. PROPHASE:
Animal cell
Plant cell

5. METAPHASE: chromosomes line up at the equator
Plant cell
Animal cell

6. ANAPHASE: spindle fibers pull the sister chromatids apart
Plant Cell
Animal Cell

7. TELOPHASE: Spindle dissolves Nuclear envelope and nucleolus reform
DNA uncoils forming chromatin

8. CYTOKINESIS: cell division, 2 daughter cells form
Animal cell: cleavage furrow forms, cell pinches inwards
Plant cell: new cell plate forms in the middle

9. Onion cells – find cells in the following phases:
Prophase, Metaphase, Anaphase
In the next slide also find interphase and telophase.