A Mendelian trait is one that is controlled by a single locus in an inheritance pattern. Non-Mendelian traits involves multiple alleles or polygenes. Mendelian traits that are transmitted by genes that lie on the autosomes demonstrate autosomal inheritance.
Autosomal inheritance is characterized by the transmission of the two alleles segregating independently. The inheritance of a trait that is determined by a gene located on one of the sex chromosomes is called sex-linked inheritance. Y-linked inheritance, also referred to as holandric inheritance.