Question

A man's mother died from having the neurodegenerative genetic disorder Huntington's disease, which is caused by a dominant mutant allele that exhibits high penetrance. The man's daughter wants to be tested for the mutant gene, and he tells her not to bother because her probability of having the disease is zero. Is he telling her the truth?

Answer 1

Answer: No he's not telling her the truth

Explanation: There's never a guarantee of not having it. There's always at least a 0.000000001% chance of having any disease.