One codon, two amino acids - the genetic code has a Shift key

Not Exactly Rocket Science
By Ed Yong
Jan 9, 2009 6:00 AMNov 5, 2019 2:14 AM

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Living things, from bacteria to humans, depend on a workforce of proteins to carry out essential tasks within their cells. Proteins are chains of amino acids that are strung together according to instructions encoded within that most important of molecules - DNA.

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