heterokaryons ( hets ) of the asexual , pathogenic yeast candida albicans obtained by fusing protoplasts of complementing auxotrophic strains generate large numbers of parental-type auxotrophic monokaryons by random assortment of single nuclei into blastospores , and smaller numbers of monokaryons bearing hybrid nuclei formed through either karyogamy or the transfer of genetic material from one het nucleus to another .
C0898753
het
C0007610
nucleus