Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Polymerase chain reaction (DNA). Kuongorora DNA nhasi kunobvira kunyange nemari shoma zvikuru yeropa: ikoku kunowanzoshandiswa musayenzi yezvokurapa, asi zvinowo rutivi rwomuitiro wokuongorora wezvirwere zvakawanda.  Mubvunzo: DNA inoshandiswa kupi nhasi?
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