Rip open a little package of baker’s yeast from the supermarket, peer inside, and you’ll see your distant cousin.
That’s because we share a common ancestor with yeast, and a new study in the journal Science suggest that we also share hundreds of genes that haven’t really changed in a billion years.
Edward Marcotte, a biologist at the University of Texas at Austin, knew that humans and yeast have thousands of similar genes. But, he wondered, how similar are they?
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