Chalnoth
Senior Contributor
I'm not quite sure what your point is here. Single-nucleotide substitutions aren't the only type of possible mutation. They are significant because they are more easily beneficial. But there have been recorded situations of more complex mutations being beneficial.Gracchus...would you please point me to a neodarwin site that explains to me how evolution works if it is not done in small (nucleotide) increments?.. I would like to read about that. Here's one that verifies what I said.
http://www.howstuffworks.com/evolution.htm/printable[FONT=arial,helvetica][SIZE=-1]Only about one nucleotide pair in a thousand is randomly changed every 200,000 years. Even so, in a population of 10,000 individuals, every possible nucleotide substitution will have been "tried out" on about 50 occasions in the course of a million years, which is a short span of time in relation to the evolution of species. Much of the variation created in this way will be disadvantageous to the organism and will be selected against in the population. When a rare variant sequence is advantageous, however, it will be rapidly propagated by natural selection. Consequently, it can be expected that in any given species the functions of most genes will have been optimized by random point mutation and selection. [/SIZE][/FONT]By the way...why is it that it's always evolutionists who use that stupid hand-waving or tongue-wagging icon???
And how else could evolution procede if natural selection did not select individual nucleotides? -- that's how animals supposedly built up!
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