Altmann theory DNA De Vries theory Galtonian theory Mendelianism Mendelism RNA Verworn theory Weismann theory Weismannism Wiesner theory allele allelomorph birth character chromatid chromatin chromosome determinant determiner diathesis endowment eugenics factor gene genesiology genetic code genetics hereditability heredity heritability heritage inborn capacity inheritability inheritance matrocliny patrocliny pharmacogenetics replication