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adult AMER animals Anthocyanin Arch autocatalytic curve Bidder's organ Bioch Biol Cannabis Cannabis sativa cell characters chromatin chromogen chromosome cleavage color Cuenot cytoplasm developmental different eggs Dioecious dominant dominant genes embryological Ent.-Mech environment environmental enzyme action enzyme theory Experimental f. d. ges fact female flies gamete genera genes are enzymes genetic genetic factors geneticists Gesells Goldschmidt gynase hereditary heredity hermaphrodite frog Heterosis homozygous hybrid vigor iiber Inbreeding individual inheritance interpretation Johannsen Jour larva produces litter-mates male McPhee mean mechanism melanin Mendelian ment methods normal obtained oxidation Physiology of Development pigment pollen grains pollen tube postulated problems protein rate of growth Reversal of Sex Robertson SEDGWICK MEMORIAL LECTURE set free Sex in Hemp shown sigmoid curve Societe de Biologie species sperm stages t)ber temperature theory of sex tion ttber tyrosin Wheldale wild types WILLIAM THOMPSON SEDGWICK X-chromosome Zeit Zool zoologists zymes