Tom is CTOSS/ 3. Skin color in humans is determined by a polygenic
inheritance system, possibly involving involving as many
as 9 genes. For simplicity let's consider the influence of
3
genes: A. B, and C. where the dominant allele darkens
skin color. Suppose a women who is AABbCc mates
with a man who is AaBbcc.
A. List all of the possible genotypes of the gametes that
could be produced by each the parents?
B. Draw a Punnett square that shows the genotypes
possible, and number each genotype from lightest (1) to
darkest skin coloration.
C. In this cross, how many dominant alleles will children
with the darkest olin