Chii chinonzi epistatis?
Epistasis chinhu chinoitika mu genetics umo migumisiro ye gene mutation inotsamira pakuvapo kana kusavapo kwekushanduka mune imwe kana mamwe majini, zvakanyatsonzi modifier genes. Nemamwe mashoko, migumisiro yeshanduko inotsamira pamasikirwo ayo inooneka mairi. Nokudaro, kushanduka kwemakemikari kweepistatic kunova nemigumisiro yakasiyana kana kuchiitwa kwoga kana kuti pamwe chete. Pakutanga, shoko rokuti epistasis raireva zvakananga kuti muuyo wechimwe chinjo yejeni unovanzwa nouyo wechimwe chinjo yejeni.  Pfungwa yeepistasis yakatanga mu genetics muna 1907 asi zvino inoshandiswa mu biochemistry, computational biology uye evolutionary biology. Chiitiko ichi chinomuka nemhaka yekudyidzana, kungava pakati pemageneti (akadai sekushanduka-shanduka kunodiwawo mumiganhu yekutaura kwemajini) kana mukati mavo (kusanduka-shanduka kwakawanda kunodiwa pamberi pejini risati rarasikirwa nebasa), zvichitungamirira kumigumisiro isiri mutsara. Epistasis ine pesvedzero huru pachimiro chenzvimbo dzekuvandudza, izvo zvinotungamira kumhedzisiro yakadzika yekushanduka-shanduka uye nekushanduka kwehunhu hwe phenotypic.