In the budding yeast Saccharomyces cerevisiae, mating-type is determined by two non-homologous alleles at the mating-type locus. S. cerevisiae has the capability of undergoing mating-type switching, that is conversion of some haploid cells in a colony from one mating-type to the other. Mating-type switching can occur as frequently as once every generation.
The mating type of Saccharomyces cerevisiae is determined by two separate alleles at the mating-type locus. This yeast has the capacity for mating-type switching, where certain haploid cells in a colony can be converted from one mating type to the other. This process can occur with great frequency, even as often as once per generation.