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- From: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Newsgroups: talk.origins
- Subject: Re: Probability of Evolution
- Message-ID: <97730@netnews.upenn.edu>
- Date: 15 Nov 92 18:25:55 GMT
- References: <2AFDC682.1433@ics.uci.edu> <JNi2TB2w165w@kalki33> <97114@netnews.upenn.edu> <721626990@sheol.UUCP>
- Sender: news@netnews.upenn.edu
- Reply-To: weemba@sagi.wistar.upenn.edu (Matthew P Wiener)
- Organization: The Wistar Institute of Anatomy and Biology
- Lines: 18
- Nntp-Posting-Host: sagi.wistar.upenn.edu
- In-reply-to: throopw@sheol.UUCP (Wayne Throop)
-
- In article <721626990@sheol.UUCP>, throopw@sheol (Wayne Throop) writes:
- >Is there any strong evidence that nucleotides, by chemistry
- >alone, tend to produce good replicators?
-
- None that I've come across. That's why some people are proposing
- acyclic bases, which have a much simpler chemistry, and presumably
- could evolve to the existing cyclic bases.
-
- >( But speaking of models of abiogenisis, does anybody know any
- > details about the one that supposes replicators may have arisen
- > from the chemistry of the ATP power cycle, instead of RNA,
- > proteins in general, or even clay... ? Just wondered if anybody'd
- > heard of that one, and had some details. )
-
- You're speaking of Waechtershaeuser. His model (PNAS 87 p200) sounds
- fine to me, but as a non-chemist, I'm kind of gullible on this topic.
- --
- -Matthew P Wiener (weemba@sagi.wistar.upenn.edu)
-