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Transcript 
The Cell Cycle
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
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
PROPHASE:
Animal cell
Plant cell
METAPHASE: chromosomes line up
at the equator
Plant cell
Animal cell
ANAPHASE: spindle fibers pull the
sister chromatids apart
Plant Cell
Animal Cell
TELOPHASE:
• Spindle dissolves
• Nuclear envelope and nucleolus reform
• DNA uncoils forming chromatin
CYTOKINESIS: cell division, 2 daughter cells form
Plant cell: new cell plate
forms in the middle
Animal cell: cleavage furrow
forms, cell pinches inwards
Onion cells – find cells in the following phases:
Prophase, Metaphase, Anaphase
In the next slide also find interphase and telophase.
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