Q1. Two pigs whose tails are accurately 25 cm in length are bred over 10 years and they produce 96 piglets with the following tail lengths: 6 piglets at 15 cm, 25 at 20 cm, 37 at 25 cm, 23 at 30 cm, and 5 at 35 cm.

a. How many pairs of genes are regulating the tail length character? (Hint: count the phentotypic classes, or determine the sum of the ratios of the classes)

b.) What offspring phenotypes would you expect from mating between a 15-cm and 30-cm pig?

Q2. Adding of H+ or OH- to a reaction increased its overall rate indicating the rate limiting step was the addition of H+ or OH- to the intermediate. Is this really true? Why or why not?