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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.

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Answers (2)
  1. 9 May, 04:32
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    Answer: B
  2. 9 May, 04:37
    0
    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.
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