Hmm RNA and DNA arise in tandem?

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Excubis
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Hmm RNA and DNA arise in tandem?

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For those who like. Article: http://phys.org/news/2016-09-scientists ... -life.html
Love this "Krishnamurthy added that scientists will never know exactly how life began (barring the invention of a time machine), but by considering circumstances of early evolution, scientists can gain insights into the fundamentals of biology."
Paper: http://onlinelibrary.wiley.com/doi/10.1 ... F10.f02t03
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Talishi
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Re: Hmm RNA and DNA arise in tandem?

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Post by Talishi »

Excubis wrote: For those who like. Article: http://phys.org/news/2016-09-scientists ... -life.html
Love this "Krishnamurthy added that scientists will never know exactly how life began (barring the invention of a time machine), but by considering circumstances of early evolution, scientists can gain insights into the fundamentals of biology."
The gist of the article seems to be that there could be no intermediate phase of RNA co-habitating with DNA because replication enzymes would recognize that as a copy error and fix it. It assumes these enzymes were fully up and operational during the transition phase.
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