what is a genotype
From Wikipedia, the free encyclopedia. The genotypeâphenotype distinction is drawn in genetics.  Genotype  is an organism's full hereditary information.  Phenotype  is an organism's actual observed properties, such as morphology, development, or behavior.This distinction is fundamental in the study of inheritance of traits and their evolution.rom Wikipedia, the free encyclopedia. The genotypeâphenotype distinction is drawn in genetics.  Genotype  is an organism's full hereditary information.  Phenotype  is an organism's actual observed properties, such as morphology, development, or behavior.