Intro Breeding Bunnies lab

1. Intro Breeding Bunnies lab

2. W.E. Castle discovered hairless rabbits (ff) in 1933. They would be very useful in a microevolution experiment.

3. Now if I had 50 bunnies that were carriers for hairless-ness (Ff), I could put them in an isolated meadow in England

4. Letting nature take its course…they would breed like bunnies. Any hairless rabbits (ff) would not survive the cold winter…thus being eliminated from the gene pool.

5. I would record each offspring produced each generation. And, then use that data I could calculate the changes in gene frequency (microevolution) of the F allele and f allele.

6. OK…Now I just need a Grant to pay for the research, convince my parents to let me go on travel study, A passport…. Hum, maybe I could come up with a model experiment

7. Converting the proposed experiment with live animals into an experiment with model animals F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f

8. Converting the proposed experiment with live animals into an experiment with model animals F f F f F f F f F f F f F f F f F f F f I could use beans to represent the alleles of each bunny “F” allele “f” allele F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f

9. Converting the proposed experiment with live animals into an experiment with model animals F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f

10. Converting the proposed experiment with live animals into an experiment with model animals F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f F f

11. Converting the proposed experiment with live animals into an experiment with model animals Model Meadow Put the bunny alleles in the Bag  mating

12. Converting the proposed experiment with live animals into an experiment with model animals Model Meadow Put the bunny alleles in the Bag  mating Draw 2 alleles out at a time  bunny born

13. Converting the proposed experiment with live animals into an experiment with model animals Model Meadow Put the bunny alleles in the Bag  mating Draw 2 alleles out at a time  bunny born Repeat until bag empty  complete generation

14. Converting the proposed experiment with live animals into an experiment with model animals Model Meadow Record Data calculate gene frequency F & f

15. Converting the proposed experiment with live animals into an experiment with model animals Model Meadow Record Data calculate gene frequency F & f Repeat 8 times  eight generations of bunnies

16. Converting the proposed experiment with live animals into an experiment with model animals Model Meadow Record Data calculate gene frequency F & f Repeat 8 times  eight generations of bunnies Graph microevolution: change in allele frequency over time

17. So… • What would be the research question of this lab?

18. So… • What do you predict will happen to the percentage of f (NO fur alleles) in the bunny population over 8 generations? • Why? • What do you predict will happen to the percentage of F(fur alleles) in the bunny population over 8 generations? • Why?

19. Write a formal hypothesis: Ifblah blah blah, then blah blah blah blah