Question

Is it possible to be a carrier of a dominant gene?

Answer 1

Dominant gene carrier:

1. Even when just one copy of a dominant gene is present, i.e. in the heterozygous situation, it is expressed.
2. Dominant genetic diseases are those that can only be caused by a mutation in one of the two copies of the affected genes.
3. A person who has a mutation for a dominant condition typically exhibits the disorder; as a result, they are typically referred to as having the disorder rather than just being a carrier of it.
4. One faulty gene must exist in one copy for a dominant genetic condition to manifest. Only recessive diseases, which require two copies of the faulty gene to manifest phenotypically, can have a carrier.