A mutational timer is built into the chemistry of DNA

Published: 31/01/2018
A mutational timer is built into the chemistry of DNA
Source: WWW.EUREKALERT.ORG

Scientists have discovered that DNA contains a kind of built-in timer that clocks the frequency with which mutations occur. They show that DNA bases can shape-shift for a thousandth of a second, transiently morphing into alternative states that allow the molecule's replication machinery to incorporate the wrong base pairs into its double helix. Such mismatches, though rare, serve as the basis of

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