Nature, Not Nurture?

Proteins may be more of a factor in shaping regulatory patterns than environment, according to a new study that looks at how cells' protein networks relate to a bacteria's genome. The lab of computer scientist Luay Nakhleh ar Rice University reported in the Proceedings of the National Academy of Sciences that when environmental factors are eliminated from an evolutionary model, mutations and genetic drift can give rise to the patterns that appear. They studied changes that show up in regulatory networks that determine the organism's characteristics. read more

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