Dangane da kayan tsire-tsire na Direct PCR Plus, ana amfani da dUTP maimakon dTTP, kuma an ƙara enzyme na UNG wanda zai iya lalata samfurin da ke dauke da dUTP. Ta wannan hanyar, ana tabbatar da takamamme da daidaito na fadadawa, kuma matsalar rigakafin samfurin PCR wanda zai iya faruwa yayin babban gwajin kwayar halitta an hana shi.