Please draw the Punnett squares for all three of the following
solutions.
1. The expected proportions of genotypes and phenotypes
for the offspring of a cross between a woman who is homozygous
recessive and a man who is heterozygous for the Starbucks trait
would be as follows:
Cross: Rr x rr
F1: Rr, Rr, rr, rr
a. Genotypes: 50% Rr, 50% rr
b. Phenotypes: 50% fan, 50% avoider
2. The expected proportions of genotypes and phenotypes
for the offspring of a cross between a woman who is heterozygous
and a man who is also heterozygous for the social media
trait:
Cross: Aa x Aa
F1: AA, Aa, Aa, aa
a. Genotypes: 25% AA, 50% Aa, 25% aa
b. Phenotypes: 75% social media addict, 25% non addict
3. The expected proportions of genotypes and phenotypes
for the offspring of a cross between a woman who is homozygous
dominant and a man who is homozygous recessive for the channel
surfing syndrome trait would be as follows:
Cross: CC x cc
F1: Cc
a. Genotypes: 100% Cc
b. Phenotypes: 100% channel surfer