Page 1: Introduction to Non-Mendelian Inheritance Patterns

This page introduces fundamental concepts of non mendelian genetics, focusing on key inheritance patterns that differ from classical Mendelian genetics.

Definition: Codominance occurs when both alleles are fully expressed in the heterozygous condition, resulting in both traits being visible in the phenotype.

Example: In chickens, when black (FB) and white (FW) feather colors are inherited together, they produce a checkered pattern (FBFW) where both colors are distinctly visible.

Definition: Incomplete dominance is a condition where one allele is not completely dominant over another, resulting in a blended intermediate phenotype.

Highlight: Multiple alleles refer to genes that have more than two possible allelic forms, as seen in blood types (A, B, AB, O).