Hartwell used this organism to screen for cdc regulators of the cell cycle, and positive and negative selection in this organism often exploits the genes URA3 and LYS2. Temperature-sensitive mutants are often created when using them for screens, and these organisms produce elongations called shmoos during mating. These organisms are used in an assay that uses a split Gal4 
Hartwell used this organism to screen for cdc regulators of the cell cycle, and positive and negative selection in this organism often exploits the genes URA3 and LYS2. Temperature-sensitive mutants are often created when using them for screens, and these organisms produce elongations called shmoos during mating. These organisms are used in an assay that uses a split Gal4 protein to screen for protein-protein interactions, called the two-hybrid assay, and they can switch mating types via the HML and HMR loci. They reproduce when an a type fuses with an alpha types, forming a diploid cell which can then bud. FTP, name this basic eukaryotic model organism, commonly called bakers' yeast.
Hartwell used this organism to screen for cdc regulators of the cell cycle, and positive and negative selection in this organism often exploits the genes URA3 and LYS2.
Saccharomyces cerevisiae or baker's yeast before mention