Huntington's disease is a genetic disorder that is caused by a dominant allele. Which of the following is true?

A. A person with Huntington's disease will pass the disease onto 100% of their children.

B. A child who inherits one copy of the gene that causes Huntington's disease will have the disease.

C. A child who inherits one copy of the gene that causes Huntington's is a carrier for the disease.

D. Huntington's disease tends to skip generations.

Question

Biology

Babe

9 May, 03:06

Huntington's disease is a genetic disorder that is caused by a dominant allele. Which of the following is true?

A. A person with Huntington's disease will pass the disease onto 100% of their children.

B. A child who inherits one copy of the gene that causes Huntington's disease will have the disease.

C. A child who inherits one copy of the gene that causes Huntington's is a carrier for the disease.

D. Huntington's disease tends to skip generations.

+1

Answers (2)

Know the Answer?

Nina · Answer 1

The correct answer will be option B.

Explanation:

Huntington's disease is an autosomal dominant disorder that means even if there is only one copy of the gene is present, the person will be affected by this disorder. A person with Huntington's disease will pass the disease onto 50% on his children if another parent is with the normal gene. A person cannot be a carrier as only one copy of the gene is enough to affect the individual for the disorder.

Thus, the correct answer would be option B.