He taputapu taiwhanga a WD-9402D i roto i te koiora ngota hei whakanui i nga raupapa DNA, RNA ranei ma te tauhohenga mekameka polymerase (PCR). Kei te mohiotia ano he miihini PCR, he whakakaha DNA ranei. WD-9402D he 10.1-inihi te mata pa tae, he ngawari ki te whakahaere, ka whai mana koe ki te hoahoa me te tuku tika i o tikanga mai i tetahi taputapu pūkoro, rorohiko papamahi ranei.