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Genetic requirements for AFB1-associated mutagenesis and recombination. Mutation frequency is plotted against AFB1 concentration. The total exposure time is 4 h. Survival is plotted against AFB1 concentration. The solid black square is wild type (YB163), the open black square is dun1(YB387), the open triangle is mec1(YB86), and the open diamond is rad53 (YB353). Genotypes are given next to the symbols.
