Named after the monk/scientist Gregor Mendel, Mendelian inheritance is the manner in which genes and traits are passed from parents to children. Examples of Mendelian inheritance include autosomal dominant, autosomal recessive, and sex-linked genes. This was the first quantitative analysis of plant genetics and a prime example of the scientific method. However Mendelian inheritance only describes the simplest of genetic traits
In Mendelian inheritance each child has two genes for each trait, one gene from each parent. Dominant genes are expressed as capital letters, and recessive genes are expressed as lowercase letters.