image: Escherichia coli. This material relates to a paper that appeared in the Aug. 19, 2016, issue of Science, published by AAAS. The paper, by Nili Ostrov at Harvard Medical School in Boston, MA, and colleagues was titled, 'Design, synthesis, and testing toward a 57-codon genome.' view more
Credit: Chris Bickel / <i>Science</i> (2016)