1. Fun fact: Humans are one of the least diverse species; fruit flies are 10x as diverse.

2. Catalyst: list all the genes you see

3. Congrats: You created a gene pool! What is a gene pool?

4. Congrats: You created a gene pool! Gene pool: the set of all genes in a population Remember: population only includes 1 species in an area

5. Small Gene Pool vs. Big Gene Pool LOW genetic diversity HIGH risk of extinction HIGH genetic diversity LOW risk of extinction Mutations arrive and survive Famine, disease, natural disaster

6. Think about it… What’s a way we could increase this classroom’s gene pool? What’s a way we could decrease it?

7. More Evolution… http://www.youtube.com/watch?v=Q6JEA2olNts

8. Recap Founders Effect: Gene pool of the population represents those of the initial members or founders Bottleneck Effect: A portion of the population is randomly eliminated, resulting in a gene pool that reflects the survivors Genetic Drift: The random drift between phenotypes that occurs in a population

13. Genetic Drift - Random

14. Real world example

15. Ellis Van-Crefeld Syndrome