Frank,
As regards your post of Wed Apr 16, 2003 12:33 pm which quotes the very last sentence of my post of Tue Apr 15, 2003 8:34 pm:
Quote:JamesMorrison wrote:
Obviously, the fact that humans and apes' DNA is 98% similar is suggestive of a relatively common ancestor but little else.
Frank wrote:
Quote:A couple of comments are in order here, James.
I suspect that your statement might be more correctly stated: "...is suggestive of a relatively recent common ancestor..."
There is a good possibility that ALL life shares a common ancestor far enough back.
And if you statement is altered to read as I suggested, that hardly is something that should include the statement "...but little else."
That relaitvely recent common ancestor is a rather important feature in and of itself.
I appreciate your attempt at editing my statement but I phrased it purposely that way because the term "recent", that you suggest be inserted, is itself relative and seemed superfluous (I would submit more specificity is demonstrated with the 98% ratio being discussed).
But, in fact the whole point of my post was: A "small" amount of differential DNA between humans and chimps does not translate to a "small" difference when the resultant phenotype is expressed and therefore that small change in genetic material is "important". My focus of importance was on the difference in genetic material not the similarity.
Consequentially the shared 98% of DNA does demonstrate potential shared ancestry and "little else".
My point in the post dealt with the fact that: Interesting in the comparison between the two species is not their common origins, for like you say all life on earth "shares a common ancestor" (Transpermia Theory aside), but what a big difference 2% in DNA manifests in the final evolutionary product.
Finally, even if one has the desire to and does alter my statement to your liking I fail to find where it implies unimportance to common ancestry. It merely restates the obvious. Once obviated the concept of common ancestry stands on its own merits.
Respectfully,
JM