1. Embryogenesis and Embryonic Induction

2. Simple Development

3. Higher Animal Development

4. Autonomous Specification Based on polarity of egg cell/zygote

8. Conditional/Regulative Induction
Signal Transduction Pathway Between Neighboring Cells

12. Induction can only influence cells to a point.
Once a cells genetic fate has been determined, it will continue to develop into those cells.
Shown through genetic transplantation experiments.

16. Based on level of “potency”