Which of the following has a polygenic pattern of inheritance?: (A) Diabetes mellitus, (B) Familial hypercholesterolemia, (C) G6PD, (D) Resistant rickets
Answer is A. Polygenic pattern It occurs when one characteristic is controlled by two or more genes -Diabetes mellitus Autosomal dominant : Familial hypercholesterolemia X linked recessive G6pD X linked dominant: Resistant rickets