2/10 Biology Class update and homework due 2/17

Hi folks,

Today we continued looking at evolution by taking a deeper look into natural selection.  We did a lab where we modeled the change in over time in a gene pool of rabbits.

For homework this week please answer the following questions.  

These are based on today's lab.

1. What did the poker chips represent?  Why did we use two different colors of chips?

2. What was the original gene frequency of the F and the f alleles before selection occurred? 

3. How did the gene frequency of the F and f alleles change by the 10th generation (or at least as far as you got)? 

4. How do you explain that both alleles, F and f, changed in frequency over time in the lab? 

5. How is this simulation an example of evolution by natural selection? 

6. In nature, how is it that lethal alleles, like furlessness, are still passed along through the generations and not completely selected out of the population? 

7.  How did the bag of chips represent the gene pool?

8. If we wanted to represent artificial selection, what could we have done differently for this simulation?

9.  If we wanted to represent genetic drift (random change in the gene pool), what could we have done differently in this simulation?

10.  If the temperature warmed so that the furless bunnies didn't die, what would that have done to the gene pool over time?

From today's quiz, it appears that perhaps a bit more work with non-mendelian genetics may be a good idea. :)   Here you go.  (These are great quiz questions btw.)

11.  What is the difference between non-mendelian genetics and mendelian genetics?

12.  We covered 4 different types of non-mendelian genetic possibilities.  What where they?

13.  Describe what happens in a co-dominance situation.   Give an example.

14.  Describe what happens in a incomplete dominance situation.  Give an example.

15.  Describe what happens in a multiple-allele situation.  Give an example.

16.  If a dad with type AB blood and a mom that has type A blood has a child, what are the possible blood types of the child.  DO THE PUNNETTS. (BTW, there's more that one Punnett here, in fact there are 2 Punnetts.)

17.  If a If a dad with type B blood and a mom that has type O blood has a child, what are the possible blood types of the child.  DO THE PUNNETTS. (BTW, there's more that one Punnett here, in fact there are 2 Punnetts.)

18.  If a dad with type O blood and a mom that has type AB blood has a child, what are the possible blood types of the child.  Only one possibility here…hooray!