Phenotypic trait | trait | Quantitative trait locus | Trait theory | Trait (biology) | Sickle cell trait | Intelligence (trait) | Derived trait |
The term originated from the occasional black sheep which are born into a flock of white sheep due to a genetic process of recessive traits.
The leucistic trait is due to a recessive mutation in the gene for Tyrosinase (TYR), an enzyme responsible for the production of melanins.