Sero inonzi ihomozygous yerimwe gene kana maalleles akafanana ejini aripo pamakromosomes ehomologous.
Iyo homozygous mbeva modhi imhuka yerabhu inowanzo shandiswa iyo yakagadziridzwa gene kuti ive nemakopi maviri akafanana ejini chairo.Iyi modhi inoshandiswa zvakanyanya mukuferefeta kwesainzi kuongorora akasiyana genetic kusagadzikana uye zvirwere.
Ne tekinoroji yechinyakare, zvinotora kanenge 2-3 zvizvarwa zvekuberekesa uye kuongorora kuti uwane homozygous mbeva kubva kune funder mbeva, iyo inodhura inokwana 10-12 mwedzi ine yakaderera budiriro mitengo.