Achondroplasia ____

Question

Achondroplasia ____.  
A) is inherited as an autosomal recessive condition
B) affects about one in one million people
C) affects only homozygotes
D) is characterized by abnormally short arms and legs
E) is inherited as an X-linked disorder

Accepted Answer

Achondroplasia is a genetic disorder that is characterized by abnormally short arms and legs. It is caused by a mutation in the FGFR3 gene and is inherited in an autosomal dominant pattern, meaning that a person with achondroplasia has a 50% chance of passing the condition on to each of their children. It affects about one in 15,000 to 40,000 people.