An ce tantanin halitta ya zama homozygous ga wani kwayar halitta ta musamman lokacin da nau'ikan kwayoyin halitta iri ɗaya suke a kan chromosomes na homologous.
Samfurin linzamin kwamfuta na homozygous dabbar dakin gwaje-gwaje ce da aka saba amfani da ita wacce aka gyara ta ta hanyar gado don samun kwafi guda biyu na takamaiman kwayar halitta.Ana amfani da wannan samfurin sosai a cikin binciken kimiyya don bincika cututtuka daban-daban na kwayoyin halitta da cututtuka.
Tare da fasahar gargajiya, yana ɗaukar aƙalla ƙarni 2-3 na kiwo da dubawa don samun berayen homozygous daga berayen masu ba da kuɗi, wanda ke biyan jimillar watanni 10-12 tare da ƙarancin nasara.