Chapter 6 Chromosomes and Cell Reproduction. Section 6-1. Cell division (cell reproduction) Occurs in humans and LT at diff times in their life Formation of gametes (egg/sperm) involves special types of cell ÷ (this will be covered in chapter 7) When cells ÷, DNA is 1st copied and then ÷.
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5 Phases of Cell Cycle:
1. 1st growth (G1) phase: cell grows rapidly and carries out routine functions
2. Synthesis (S) phase: DNA is copied
3. 2nd growth (G2) phase: preparations made for nucleus to ÷
4. Mitosis: nucleus of cell ÷ into 2 nuclei
5. Cytokinesis: cytoplasm ÷