intro breeding bunnies lab. w.e. castle discovered hairless rabbits (ff) in 1933. they would be very...

Intro Breeding Bunnies lab

W.E. Castle discovered hairless rabbits (ff) in 1933. They would be

very useful in a microevolution

experiment.

Now if I had 50 bunnies that were carriers for hairless-ness (Ff), I

could put them in an isolated meadow in

England

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.

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.

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

Converting the proposed experiment with live animals into an experiment with model animals

F f F f F f F f F f F fF f F f F fF f

F f F f F f F f F fF f F f F fF f F f

F f F f F f F f F fF f F fF f F fF f









I could use beans to represent the alleles of

each bunny“F” allele “f” allele


Model Meadow Put the bunny alleles in the Bag mating


Model Meadow

Put the bunny alleles in the Bag mating

Draw 2 alleles out at a time bunny born


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


Model Meadow

Record Data calculate gene frequency F & f


Model Meadow


Repeat 8 times eight generations of bunnies


Model Meadow


Repeat 8 times eight generations of bunnies

Graph microevolution: change in allele frequency over time

So…

• What would be the research question of this lab?

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?

Write a formal hypothesis: If blah blah blah, then blah blah blah blah

intro breeding bunnies lab. w.e. castle discovered hairless rabbits (ff) in 1933. they would be very...

Documents