The reason that the HD allele acts as a dominant allele is that
A) the HD mutation results in a protein that can damage nerve cells even in the presence of the normal protein.
B) the normal HD allele does not normally produce a protein but the mutant HD allele does.
C) the mutant HD allele suppresses protein production from the normal HD allele.
D) the protein produced from the mutant HD allele is nonfunctional.
A) the HD mutation results in a protein that can damage nerve cells even in the presence of the normal protein.
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