Browsing by Subject "mutant strains"
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(1977)Initial attempts to find mutant strains incapable of transporting guanine into the cells yielded no mutants. Further studies on the transport of guanine into N. crassa cells revealed a second guanine uptake system which ...
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(1977)Several attempts to isolate mutant strains of Neurospora crassa which were unable to grow on hypoxanthine were made and no mutants were obtained. Transport studies showed that hypoxanthine was transported by only one system ...