title: PRESERVATION OF THE HETEROZYGOUS DIPLOID CONDITION IN INDUSTRIAL MICRO-ORGANISMS.
mesh_terms: D001431:Bacteriological Techniques; D004171:Diploidy; D006579:Heterozygote; D009154:Mutation; D010407:Penicillium; D011309:Preservation, Biological; D011831:Radiation Genetics; D012106:Research
keywords: BACTERIOLOGICAL TECHNICS; EXPERIMENTAL LAB STUDY; MUTATION; PENICILLIUM; RADIATION GENETICS