Why is baker’s yeast useful for expressing genetically engineered genes
Why is it better to use yeast cells instead of bacterial cells to make proteins for people?
It is because Yeast cells are eukaryotic and so would likely be successful in expressing eukaryotic genes. Like the lac operon, many promoters that can be turned on or off have been cloned from the yeast genome. When used to make medicines for people, the yeast cells work best. Even though it is much harder to control gene expression in eukaryotes than it is in bacteria, the basic rules are still the same. Most of the time, eukaryotic genes are turned on and off when transcription starts, but in some cases, transcription can be slowed down and turned on and off at later steps.