The figure shown indicates two diseases with genetic links that are common in industrialized nations. The fact that both are about 80-90% avoidable indicates that

Question

Quizplus · Accepted Answer

The fact that both diseases are 80-90% avoidable suggests that there are environmental factors at play in addition to genetics. This makes choice D the best option. Choice A is unlikely as it assumes that avoiding having children with affected individuals is the only reason for the avoidability of these diseases, which is not necessarily the case. Choice B is also unlikely, as most common diseases in industrialized nations are not Mendelian traits. Choice C may be a factor, but it is not the most likely explanation.

The Figure Shown Indicates Two Diseases with Genetic Links That