AP BIOLOGY

Detailed explanation-1: -A carrier, as related to genetics, is an individual who “carries” and can pass on to its offspring a genomic variant (allele) associated with a disease (or trait) that is inherited in an autosomal recessive or sex-linked manner, and who does not show symptoms of that disease (or features of that trait).

Detailed explanation-2: -Heterozygotes, with only one mutated allele, are clinically normal carriers of the trait. Homozygous animals usually have clinical disease, and the onset is usually early in life.

Detailed explanation-3: -Heterozygous, as related to genetics, refers to having inherited different versions (alleles) of a genomic marker from each biological parent. Thus, an individual who is heterozygous for a genomic marker has two different versions of that marker.

Detailed explanation-4: -In genetics, describes an individual who does not have a particular phenotypic trait or disease.