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Coils and twirls in DNA’s double-helix change how the molecule behaves, opening a new role for topology in the study of life.
Only a few genetic changes were enough to change an ordinary stomach bug into the bacteria responsible for the plague.
Cellular clocks are almost everywhere. Clues to how they work are coming from the places they’re not.
A new technique for finding and characterizing microbes has boosted the number of known bacteria by almost 50 percent, revealing a hidden world all around us.