The "all-or-none" nature of x-ray induced backmutation at the melezitose locus in Saccharomyces.
D011830:Radiation Effects / Q000235:genetics*; D012440:Saccharomyces; D014312:Trisaccharides; D014965:X-Rays; D015003:Yeasts / Q000528:radiation effects*
D014312:Trisaccharides; C005190:melezitose
RADIATION EFFECTS/genetics; YEASTS/radiation effects