What member of the family carry the allele for the trait?

The member of the family that carries the allele for the trait is typically referred to as a carrier. Carriers have one copy of the allele that can express the trait, often recessive, but may not show the trait themselves. This means they can pass the allele to their offspring, potentially leading to the trait being expressed in the next generation if the other parent also carries the allele. Identifying carriers is crucial in genetic counseling and understanding inheritance patterns.