Question 5

(Multiple Choice)

Most pedigrees showing the hypothetical human trait show the following characteristics:
• Males and females are equally affected.
• Two unaffected parents can have an affected child.
• In families in which the parents are unaffected but the children are affected, one-fourth of the children are affected.
What is the MOST likely mode of inheritance for this disorder?


A) autosomal recessive
B) autosomal dominant
C) X-linked recessive
D) X-linked dominant
E) Y-linked

Answer