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irga5000 [103]
3 years ago
15

In about 90% of cases, Huntington’s disease is inherited. But in 10% of cases, there is no evidence that a parent has the diseas

e. Why do you think this is the case?
Biology
2 answers:
I am Lyosha [343]3 years ago
7 0
They weren't passed down with those genes
Nutka1998 [239]3 years ago
6 0

New mutations can also occur randomly, so there’s a chance that children of parents who didn’t inherit the gene for Huntington’s can develop a mutation in the gene that causes Huntington’s disease.

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