although the intensity of the response was dictated by thd process water used , all induced a cytotoxic ( reduction in colony-forming ability ) and mutagenic ( induced at the hypoxanthine-guanine phosphoribosyl transferase ( hgprt ) locus ) response in cells pretreated with dilutions of the waters and subsequent exposure to near ultraviolet light ( nuv ) .
C1708726
locus
C0007634
cells