Different varieties of the same gene are called

Step-by-step solution

An allele is a variant of a gene controlling the same trait and occupying a specific region on a chromosome (called the locus). One famous example of how alleles work is the alleles responsible for the flower colour in garden peas. The colour of garden peas flowers can be either purple or white. The gene coding for this trait, responsible for producing a purple pigment, is found in two forms, allele for purple colour and allele for white colour. (This was one of the seven traits studied by Gregor Mendel in his expe