PATHOLOGY

Detailed explanation-1: -Recessive traits don’t disappear from a population as their change to be inherited by offspring is the same as the change of dominant traits to be inherited. This means that if 20% of the population carries the gene for a recessive trait in a given generation then this number will stay at roughly 20%.

Detailed explanation-2: -It is almost impossible to totally eliminate recessive alleles from a population, because if the dominant phenotype is what is selected for, both AA and Aa individuals have that phenotype. Individuals with normal phenotypes but disease-causing recessive alleles are called carriers.

Detailed explanation-3: -Recessive, as related to genetics, refers to the relationship between an observed trait and the two inherited versions of a gene related to that trait. Individuals inherit two versions of each gene, known as alleles, from each parent.