Replication is nature’s greatest magic trick. Watch closely, and before your very eyes you’ll see a single cell blur into two virtually identical copies. Presto.

After more than half a century of research on molecular genetics, it would be easy to assume we’ve had this biological sleight-of-hand all figured out — but it’s not the case.

Now, by applying cutting edge technology, researchers have uncovered crucial details showing how DNA times its own replication.

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