Eukaryotes
• Occurs in two ways
• Mitosis- makes somatic (body) cells
• Meiosis – makes gametes (sex) cells
Cell Cycle
Interphase
Prophase
Metaphase
Anaphase
Telophase
CytokinesisGrowth phase
G1
Synthesis
S
Growth phase
G2
Interphase
• G1 (Growth phase 1) – the cell begins to grow
• S (synthesis) – DNA is synthesized (copied)
• G2 (Growth phase 2) – the cell continues to grow. Until mitosis occurs
Controlling the Cell Cycle
• Cancer is a term used to describe uncontrolled cell growth.
• It is usually a malfunction in the cell cycle that causes cells to be continually traped in this cycle.
• This usually arises from a mutation in a gene.