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: -It derives from the Greek prefix -, allelo-, meaning “mutual", “reciprocal", or “each other", which itself is related to the Greek adjective , allos (cognate with Latin alius), meaning “other".

Detailed explanation-3: -When the copies of a gene differ from each other, they are known as alleles. A given gene may have multiple different alleles, though only two alleles are present at the gene’s locus in any individual.