Epistatis ke eng?
Epistasis ke ketsahalo ea liphatsa tsa lefutso eo ho eona phello ea phetoho ea liphatsa tsa lefutso e itšetlehileng ka ho ba teng kapa ho ba sieo ha liphetoho liphatseng tse ling tse le 'ngoe kapa ho feta, tseo ka ho latellana li bitsoang liphatsa tsa lefutso tse fetolang. Ka mantsoe a mang, phello ea phetoho ea liphatsa tsa lefutso e itšetlehile ka hore na liphatsa tsa lefutso li hlaha sebakeng sefe. Ka lebaka leo, liphetoho tse bakoang ke tšoaetso ea mali li na le liphello tse fapaneng ha li le mong ho e - na le ha li etsahala hammoho. Qalong, lentsoe epistasis le ne le bolela ka ho toba hore phello ea liphatsa tsa lefutso tse fapaneng e koahetsoe ke phello ea liphatsa tsa lefutso tse fapaneng.  Khopolo ea epistasis e simolohile liphatseng tsa lefutso ka 1907 empa hona joale e sebelisoa ho biochemistry, computational biology le evolutionary biology. Ketsahalo ena e hlaha ka lebaka la ho sebelisana ha liphatsa tsa lefutso, ebang ke pakeng tsa liphatsa tsa lefutso (joalo ka liphetoho tse hlokahalang le ho ba laolang liphatsa tsa lefutso) kapa ka hare ho tsona (ho hlokahala liphetoho tse ngata pele liphatsa tsa lefutso li lahleheloa ke mosebetsi), e leng se lebisang liphellong tse sa tobang. Epistasis e na le tšusumetso e khōlō sebopehong sa libaka tsa tlhaho tsa ho iphetola ha lintho, e lebisang liphellong tse tebileng tsa ho iphetola ha lintho le ho iphetola ha litšobotsi tsa phenotypic.