john and pat are identical twins with identical dna. john works in a movie theater, and pat works as a…

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?\nskin color, a polygenic trait, is also determined by environmental factors.\nskin color, a polygenic trait, is also determined by the sex of the individual.\nskin color, a trait that demonstrates incomplete dominance, is also determined by environmental factors.\nskin color, a trait that demonstrates incomplete dominance, is also determined by the sex of the individual.

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?\nskin color, a polygenic trait, is also determined by environmental factors.\nskin color, a polygenic trait, is also determined by the sex of the individual.\nskin color, a trait that demonstrates incomplete dominance, is also determined by environmental factors.\nskin color, a trait that demonstrates incomplete dominance, is also determined by the sex of the individual.

Answer

Brief Explanations:

Skin color is a polygenic trait influenced by multiple genes. Identical - twins have the same genes but different skin pigmentation here. This is because environmental factors like sun - exposure (Pat as a lifeguard is more exposed) also play a role in skin color determination.

Answer:

Skin color, a polygenic trait, is also determined by environmental factors.