Top stories Two new letters for the genetic code, stat checking psychology, and the formerly abominable snowman

Top stories

Top stories Two new letters for the genetic code, stat checking psychology, and the formerly abominable snowman Scientists just added two functional letters to the genetic code Top stories : All life forms on Earth use the same genetic alphabet of the bases A, T, C, and G—nitrogen-containing compounds that constitute the building blocks of DNA and spell out the instructions for making proteins. Now, scientists have developed the first bacterium to use extra letters, or unnatural bases, to build proteins. The traditional four DNA bases code for 20 amino…

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