In this organism, the (*) HO endonuclease makes a doubleÂ­stranded break at the MAT locus.
In this organism, the protein Sic1 is degraded at the G1/S checkpoint, which is usually termed the "Start" point. A MAP kinase competes with a protein phosphatase for the phosphosites of the MAPK scaffold Ste5, whose tetraphosphorylation leads to the mating decision of this organism. The gene URA3, which encodes the protein OMP decarboxylase, is a selectable marker in this organism. This organism's genome is 12 megabases in length, organized into 16 chromosomes. In this organism, the (*) HO endonuclease makes a doubleÂ­stranded break at the MAT locus. GAL4 is a transcriptional activator native to this model organism that is used in a method that fishes for proteinÂ–protein interactions called a twoÂ­hybrid screen. The products of meiosis in this organism comprise a tetrad contained within a membranous sac called an ascus. That tetrad consists of two haploid cells ofthis organism of each mating type, a and alpha. For 10 points, name this budding yeast, a species used by both brewers and bakers.
In this organism, the protein Sic1 is degraded at the G1/S checkpoint, which is usually termed the "Start" point.
Saccharomyces cerevisiae [prompt on "Saccharomyces"; prompt on "yeast" until read]