Question

Why are carriers always heterozygous?

Answer 1

Carriers:

1. An individual who carries one harmful allele for an autosomal recessive disorder is known as a carrier.
2. And an organism is said to be heterozygous if it possesses two distinct alleles of a gene.
3. Carriers are heterozygous because they have two alleles of a gene.
4. They have the recessive allele but don't show it in their phenotype.