Professor Wen is lecturing his class about Huntington's Disease. He tells the class that it is a genetic disorder caused by _____.
A) a recessive gene on the X chromosome
B) duplication of chromosome 21
C) genes passed down from the father
D) a dominant gene on chromosome 4

Question

Quizplus · Accepted Answer

Huntington's Disease is caused by a dominant gene on chromosome 4. This means that if one parent has the disease, there is a 50% chance that their child will inherit the gene and develop the disease.

Professor Wen Is Lecturing His Class About Huntington's Disease