THE GENETIC STRUCTURE OF NATURAL POPULATIONS OF DROSOPHILA MELANOGASTER. II. OVERDOMINANCE OF SPONTANEOUS MUTANT POLYGENES CONTROLLING VIABILITY IN HOMOZYGOUS GENETIC BACKGROUND

THE GENETIC STRUCTURE OF NATURAL POPULATIONS OF DROSOPHILA MELANOGASTER. II. OVERDOMINANCE OF SPONTANEOUS MUTANT POLYGENES CONTROLLING VIABILITY IN HOMOZYGOUS GENETIC BACKGROUND