The DNA we all share

Popular Science - - CONTENTS -

A’S, T’S, G’S, AND C’S ARE ALL IT TAKES TO MAKE YOU, ME, OR A banana. Unique strings of these mol­e­cules, matched up in units called base pairs, form dou­bled DNA he­lixes, which serve as the recipes for all liv­ing things. Be­cause the chal­lenges of life—such as ab­sorb­ing nu­tri­ents, replicating, and mov­ing—are fairly con­sis­tent across or­gan­isms, there’s plenty of over­lap be­tween se­quences. Here’s a sam­pling.

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