Satunggil teori kasub ring abad ka-19, miwah kacihnayang ring  On the Origin of Species pakaryan Charles Darwin warsa 1859, inggih punika pewarisan campuran: pamineh indik individu ngwarisin sifat sané macampuh alus saking makakalih reraman ipun.
A popular theory during the 19th century, and implied by Charles Darwin's 1859 On the Origin of Species, was blending inheritance: the idea that individuals inherit a smooth blend of traits from their parents.