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Yeast, the thing that turns sugars into biofuels like ethanol, gets infections just like we do. Dennis Bayrock, microbiology Professor at the University of Saskatchewan, tells the Star Phoenix he is developing a chemical that is sort of like an "antibiotic" for yeast. The professor's invention stops bacteria from using the sugar, which could mean a few percent greater ethanol output and higher profits for companies. While there are similar chemicals already on the market, the professor says his

In recent years, as the genomes of more species have been decoded, scientists have come to realize that the genes alone are not necessarily the most critical factor in distinguishing different species. It turns out that many of the sequences are common, and it's usually a combination of multiple genes turning on and off that controls the outcome. The activation of genes is controlled by proteins that manipulate many genes.

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