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.
In the developing yeast Saccharomyces cerevisiae, mating-type is determined by two distinct alleles at the mating-type locus. S. cerevisiae has the ability to undergo mating-type switching, which involves the conversion of some haploid cells in a colony from one mating-type to the other. This process can occur as frequently as once every generation.