Heredity and Social Problems |
Common terms and phrases
ability actually animals appears average birth body carried cause cells cent chapter chromosomes classes color concerned considerable considered course cross deficiency depends determine differences differential difficulty distribution effects eggs entirely environment environmental equal evidence expected eyes fact factors families female fertility follows four frequency function genes genetic genotypes give greater groups heredity human hybrids identical immigrants important increase indicate individual inherited intelligence Italy kind known less living male mating matter means mental method nature necessary Negro normal occupational occur offspring organisms original pairs parents particular persons phenotypes plants population possible practical present probably problem produce pure races racial range reason relatively reproduction respect sample scores selection shown similar social society sort sperm studies Table tests things tion true twins United usually variation various