Question

A _______________ for a genetic disorder is a person who is heterozygous, with one normal, dominant allele and one defective, recessive allele?

Answer 1

A carrier.

Explanation:

When you have a genetic disease, where one allele is dominant over the other, then there are three types of genotypes you can have - DD homozygous dominant (assuming the disease is recessive, this person would be normal); Dd - heterozygous (this person would be normal, but will be able to pass on the disease trait to their offspring, and we call that a carrier) and dd - homozygous recessive, which would be the person that has the disease.

Hope this helps!