While you develop calloused feet when you go barefoot for a summer,your neighbor remains a tenderfoot by protecting her feet with shoes.The differences in skin toughness between you and your neighbor are best attributed to
A) the molecular structure of genes.
B) person-to-person genetic variations.
C) the impact of epigenetic marks on gene expression.
D) the interaction of genetic and environmental influences.

Question

Quizplus · Accepted Answer

This is because while there may be individual genetic variations in skin toughness, the development of calloused feet through going barefoot is primarily an environmental influence. Therefore, the differences in skin toughness between the two individuals are likely due to the interaction of genetic factors with environmental influences.

While You Develop Calloused Feet When You Go Barefoot for a Summer,your