Chemists Expand Nature’s Genetic Alphabet by Nell...

Chemists Expand Nature’s Genetic Alphabet

by Nell Greenfieldboyce, npr.org

Chemists Expand Nature’s Genetic Alphabet NPR Health

For the first time, sci­en­tists have expand­ed life’s genet­ic alpha­bet, by insert­ing two unnat­ur­al, man-made “let­ters” into a bac­teri­um’s DNA, and by show­ing that the cell’s machin­e…

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