1. How do grizzly bears grow from a single cell?
Adult Grizzly
Zygote: fertilized egg
Newborn Grizzly

2. Cell Differentiation

3. Functions of Cell Division
1) Replacement of lost or damaged cells

4. Functions of Cell Division
2) Growth-multicellular organisms develop from a single cell

5. Functions of Cell Division
3) Asexual reproduction

6. Connections between Cell Division and Reproduction
Asexual reproduction
individual parent divides into two genetically identical daughter cells
Sexual reproduction
two parents contribute genetic material to the offspring which is genetically unique

7. Prokaryotes Genes usually carried on a single circular DNA molecule
DNA has a few proteins and is attached to the plasma membrane at one point
DNA not bounded by membrane (nucleoid region)
Cells divide by binary fission