Re: Re[2]: probability and ap...
Arthur V. Chadwick (chadwicka@swac.edu)
Thu, 07 Sep 1995 10:16:45 -0700>Jgibson wrote:
>>>A comment on the probability of obtaining a given sequence
> of amino acids. The significance of this question
> for the question of the origin of life is different from
> its significance for biological variation. In
> biological variation, a system for making proteins from
> amino acids is presupposed. In questions of the origin
> of life, no such system would be available. In this
> situation, the probability of obtaining ANY
> meaningful protein seems to be to be effectively zero.
> Proteins simply do not arise de novo in nature.
>
><<
Glenn replied>
>I agree that proteins don't arise de nova. But the math of this problem is
>applicable to the RNA world also.
The criticism applies to the RNA world as well. RNA simply does not arise
de novo in nature, even in a world where the substrates are everywhere
present (such as ours today), and certainly not in one where they were not
present.
Art
WWW: http//chadwicka.swac.edu/chadwick.html