Non mendelian

• Non-mendelian patterns of inheritance do not always apply because genes exhibit more complex patterns
• Incomplete dominance is when the phenotype of the heterozygote is intermediate between the phenotypes of the homozygous parents
• Codominance is when both alleles are expressed in the phenotype.
• Multiple Alleles is when a genetic situation where specific trait may be controlled by more than a single pair of allele
• Sex-linked Traits occurs when certain genes are located on sex chromosomes (X or Y) rather than autosomal chromosomes.
• Polygenic Traits may also be controlled by two or more genes, each gene providing a small but additional effect