Week of October 8 , 2012 th
1. Explain the concept of dominant vs. recessive.
2. I have some flowers in my garden. Some are truebreeding purple.
Some are truebreeding pink. When I cross the two together I get 100%
pink progeny. What does this mean? Draw a Punnett square to explain.
3. Tyrion Lannister (yes, I’m being hip) has achrondroplasia, which is
caused by a dominant mutation in a gene called FGFR3.
Achrondroplasia causes dwarfism. I am curious as to his genotype and
want to perform a testcross to determine it. Draw out this cross,
indicating the phenotype of the recessive tester. (Bonus brownie points
for who can