Biology, 23.09.2019 14:00 antonio9768
John and pat are identical twins with identical dna. john works in a movie theater, and pat works as a lifeguard. they have very different skin pigmentation. which is the best explanation of the difference?
a. skin color, a polygenic trait, is also determined by environmental factors.
b. skin color, a polygenic trait, is also determined by the sex of the individual.
c. skin color, a trait that demonstrates incomplete dominance, is also determined by environmental factors.
d. skin color, a trait that demonstrates incomplete dominance, is also determined by the sex of the individual.
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