Phenocopy, Phenocopy

In other words the phenocopy environmental condition mimics the phenotype produced by a gene.

The false phenocopy can be easily distinguished by observing the roots of the hair or by shining an ultraviolet light on the bleached brunette hair.

Morgan in 1910 where the body colour is yellow.This was a genotypic character which was constant in both the flies in all environments.However, in 1939, Rapport discovered that if larva of normal flies were fed with silver salts, they develop into yellow bodied flies irrespective of their genotype.The yellow bodied flies which are genetically brown is a varient of the original yellow bodied fly. This is now called a phenocopy.

When raised in moderate temperatures they grow up to be phenotypically similar to genetically Black rabbits. However when raised in colder climates, they become phenotypically indistinguishable. The Himalayan rabbits show black colouration of their coats, resembling the genetically black rabbits.Hence this Himalayan rabbit is a Phenocopy of the genetically black rabbit.

Source: Wikipedia > Phenocopy