LIFE SCIENCE

Detailed explanation-1: -"Allele” is the word that we use to describe the alternative form or versions of a gene. People inherit one allele for each autosomal gene from each parent, and we tend to lump the alleles into categories. Typically, we call them either normal or wild-type alleles, or abnormal, or mutant alleles.

Detailed explanation-2: -While there are three alleles, each of us has just two of them, so the possible combinations and the resulting blood types are those shown in the table below.