Yeast cells are microscopic living organisms that are often used in baking or brewing. They help dough rise and make bread fluffy, as well as convert sugars into alcohol in beer. Full definition
But the real puzzle is why these things exist in yeast cells in the first place. (uchospitals.edu)
All of a sudden, a lot was happening in the area of yeast cell division. (sciencemag.org)
Then they slipped a human version of each gene into yeast cells whose own copy of the gene had been turned down, turned off, or removed. (sciencemag.org)