Altmann theory DNA De Vries theory Galtonian theory Mendelianism Mendelism RNA Verworn theory W chromosome Weismann theory Weismannism Wiesner theory X chromosome Y chromosome Z chromosome accessory chromosome allele allelomorph allosome autosome birth centromere character chromatid chromatin chromosome complement chromosome number determinant determiner diathesis diploid number endowment euchromosome eugenics factor gene gene-string genesiology genetic code genetics genome haploid number hereditability heredity heritability heritage heterochromosome homologous chromosomes idiochromosome inborn capacity inheritability inheritance matrocliny monosome patrocliny pharmacogenetics polyploidy recessive character replication sex chromosome univalent chromosome