Many products don't. Brewer's yeast is made from Saccharomyces cerevisiae. It is the byproduct of beer-making. The yeast cells are removed, pasteurized, and deactivated. Nutritional yeast is also ...
Directed evolution is commonly performed in prokaryotic or yeast systems, but platforms are needed to enhance functions in mammalian cells. Now, a tool known as RNA replicase-assisted continuous ...