DNA And RNA May Have Existed Together Before Life Began on Earth

Before there was life, ribonucleic acid (RNA) ruled the primordial soup. Or so the story goes, according to what’s known as the RNA World hypothesis. But it seems we may have been too hasty in leaving out RNA’s more complex cousin, deoxyribonucleic acid (DNA).

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Tau.Neutrino said:

DNA And RNA May Have Existed Together Before Life Began on Earth

Before there was life, ribonucleic acid (RNA) ruled the primordial soup. Or so the story goes, according to what’s known as the RNA World hypothesis. But it seems we may have been too hasty in leaving out RNA’s more complex cousin, deoxyribonucleic acid (DNA).

more…

Thanks. Tagged to read later.

Yeah. No.

Too much hydrogen in the atmosphere for that. Abiogenic nucleic acids need large quantities of hydrogen cyanide to form. Making them incompatible with abiogenic carbohydrates. Only a pre-existing life form could put the two together, with phosphate.