Precursor to RNA?

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Phobos
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Just heard about this....anyone have more familiarity/info? Does this provide any insight into abiogenesis?

http://www.newscientist.com/news/news.jsp?id=ns99993972

You have heard of DNA and RNA, but what about TNA? It resembles its more famous cousins in almost every respect, except that it is based on a sugar called threose instead of the deoxyribose found in DNA and the ribose in RNA. Researchers have speculated that because threose is a simpler sugar than ribose, TNA could be a long-lost precursor to RNA.
… has shown that TNA can be assembled by natural enzymes.
 

Answers and Replies

  • #2
jim mcnamara
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Threose nucleic acid (TNA), glycol nucleic acid (GNA), and PNA, lack experimental evidence for their respective abiogenesis.
 
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