Stryder50
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- #101
A Surprising Number of Genetic Mutations Occur Thanks to a Quirk of Quantum Physics
...Mistakes happen. Especially when it comes to the replication of vast sequences of DNA inside our cells. It's a good thing too. If not for the errors in our genes we refer to as mutations, natural selection would be a no-go, and life would be dead in the water.
As crucial as mutations are to everything from disease to biodiversity, we know shockingly little about the physics of the process.
Findings from the University of Surrey in the UK have revived speculations that a primary trigger behind the chemical sleight-of-hand that spontaneously swaps one coded base for another is quantum in nature.
Specifically, a significant part of the mutation process is the displacement of a single hydrogen that glues together the genetic bases to make the 'rungs' of DNA's twisted ladder structure. This occurs through the process of tunneling, breaking bonds between the genetic bases of guanine and cytosine over time scales that permit permanent changes.
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