Heredity 105 Genetics 97 HEREDITY 64 Genetics-- Heredity 44 Biology 26 heredity 22 Chromosomes 21 GENETICS : A Periodical Record Of Investigations Bearing On Heredity And Variation 19 History 19 GENETICS: A PERIODICAL RECORD OF INVESTIGATIONS BEARING ON HEREDITY AND VARIATION 12 HEREDITY: AN INTERNATIONAL JOURNAL OF GENETICS 12 Women 12 Genes 11 Mutation 11 Evolution 10 Microbiology 10 Vitamins 10 GENETIC 9 Physiology 9 DNA 8 Hebrew fiction 8 Molecular genetics 7 Nutrition 7 Social conditions 7 Cell Division 6 Chromosome 6 Gene Mutation 6 History and criticism 6 Human genetics 6 Politics and government 6