Question

Complex genetic diseases are different from single-gene diseases because they __________.

A. cause death almost instantly

B. are caused by mutations to multiple genes

C. are more easily passed from one generation to the next

D. cannot be affected by lifestyle choices

Answer 1

I believe the answer is: B. are caused by mutations to multiple genes

Compared to single genetic diseases, Complex genetic disease are less likely to happen because it need both multiple mutation and environmental factors to be developed. Examples of complex genetic disease are Parkinson, Alzheimer, and Autism.

Answer 2

I think the correct answer from the choices listed above is option B. Complex genetic diseases are different from single-gene diseases because they are caused by mutations to multiple genes. These diseases are heart disease, diabetes, and obesity. Hope this answers the question.