Ii-endogenous viral elements (EVEs) ngumnombo we-DNA osuka kwii-viruses ezingena ngee-genomes zee-germ cells. zisuka kookhokho bento leyo kuthethwa ngayo. Lo mnombo, usenokuba ziziqendu ngeziqendu zee-viruses, okanye ze-viral genomes (proviruses) xa iyonke ungasoloko ukho kwi-germline, ugqithiselwa kwizizukulwana ngezizukulwana zizii-alleles, oko kuthetha okokuba sele ziziintlobo ngeentlobo oku kweelwimi zesiNguni.