Selo limatchedwa kuti homozygous kwa jini inayake pamene ma alleles ofanana a jini amapezeka pa ma chromosomes onse.
Mtundu wa mbewa wa homozygous ndi nyama ya labu yomwe imagwiritsidwa ntchito kwambiri yomwe yasinthidwa kuti ikhale ndi makope awiri ofanana a jini inayake.Chitsanzochi chimagwiritsidwa ntchito kwambiri pofufuza zasayansi kuti awone matenda osiyanasiyana a majini ndi matenda.
Ndi luso lamakono, zimatengera osachepera 2-3 mibadwo yoswana ndi kufufuza kuti atenge mbewa za homozygous kuchokera ku mbewa za funder, zomwe zimawononga miyezi 10-12 ndi chiwongoladzanja chochepa.