The gene disorder phenylketonuria is an example of

In humans,the gene responsible for Phenylketonuria produces multiple phenotypic expressions,collectively known as a syndrome. This gene causes mental retardation,broad incisor teeth,skin pigmentation,and excessive sweating. What is this type of gene called?

The phenomenon of pleiotropism refers to

Write a short note on pleiotropy.

The best example for pleiotropy is

Pleiotropic character represents that quality of a gene which is called: