Assume three loci, each with dominance (A>a, B>b, C>c), contribute to weight in
ID: 20087 • Letter: A
Question
Assume three loci, each with dominance (A>a, B>b, C>c), contribute to weight in pumpkins. Assume as well that each locus contributes equally to weight. Pumpkins that are homozygous reccessice weigh 3 pounds and those homozygous dominant at all three loci weigh approximately 300 pounds. What are the expected weight of a pumpkin heterozygous at all three loci? Show work.
a) 150 lbs
b) 153 lbs
c) 200 lbs
d) 300 lbs
e) 303 lbs
Explanation / Answer
It states that all 3 loci play *equal* role in the weight. Therefore, it is reasonable to conclude that every loci is responsible for 100 lbs each, where XX = 100 lbs, and xx = 1 pound. It can be safe to assume that Xx = 50 bounds X>x Now all heterozygous or Xx = 50 pound so, 50 + 50 + 50 = 150 lb a) 150 lbs