Control of cell type in yeast by the mating type locus. The alpha 1-alpha 2 hypothesis.
D000483:Alleles; D002874:Chromosome Mapping; D003433:Crosses, Genetic; D005816:Genetic Complementation Test; D009154:Mutation; D010641:Phenotype; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D013172:Spores, Fungal