I am still waiting for someone to demonstrate the paternity tests that show exactly how everyone evolved.
I think the claim was that since paternity tests can determine our ancestory, we can apply DNA testing methods to go further and further back along our ancestory until we start reaching common ancestors with other species. If we had DNA samples from every individual that ever lived, and a computer the size of a planet, we could, with stunning accuracy show relatedness.
As it stands we can't do this, however we can sample DNA from existing species and calculate just how different we are to one another. Lots of clever stuff goes on here, but suffice to say it is possible to calculate common ancestory.
If I said, hey, the DNA shows that we are not as related to chimps as say a banana, you guys would have and every evolutionist did, deny that this did not fit in with common descent theories.
I'm a bit confused by your double negative. If you said "The DNA shows that we are closer related to a banana than a chimp", you'd probably find evolutionists say "This doesn't fit in with our concepts of common descent"
Now, you say that you have discovered the amazing fact that chimps have similar DNA, to a degree, to us, that we are more closely related than say, a banana.
Well golly gee. Think of that. Chimps who look a whole lot more like us are more similar in other ways (DNA) as well. Let's give someone a Nobel Prize.
But why would the be more similar in other ways as well? Why would they need to, for example, use the same sequence of amino acids to construct "cytochrome c" (essential protien composed of 104 amino acids) as we do? No other creatures do. In fact, the further away you go from things that 'look' like us the more different the cytochrome c protien encoding becomes. Rhesus monkeys have one amino acid difference in their encoding, whales: 10 turtles: 15 and tunafish: 21
So there you have it, the difference are more pronounced in reptiles than in mammals and more pronounced still in fish. That just happens to be the order in which evolution happened. I'm fairly sure that there will be exceptions to this pattern, but the general trend is strong and undeniable. Also, as more and more genes are compared in this manner, the trend is strengthened.
An excellent diagram which shows the DNA sequence very planely can be
seen here. It shows the full DNA sequence of cytochrome c in humans and mice, and allows you to compare them. The conclusion is interesting...there are 78 codons which are are identical between the two of them. The number of DNA combinations that would produce exactly the same amino acids is 1.3x10
33. That's a heck of a lot of different ways they could have combined. For some reason, of all the different ways the same result could have been acheived, this way was used. And the closer you get to humans evolutionarily, the more similar, the further away, the more different the coding is.
Why on earth is that? Is it just a HUGE coincidence?
Here is a study, courtesy of PubMed, which looks at 100s of genes and compares them to come up with results which very closely match what we already knew based on the fossil evidence.
More details here
Here is a
simple graph which gives you an visual idea on what I am talking about, but of course, you'll need to study the methodology to understand the diagram better.
This message has been edited by Modulous, Fri, 03-June-2005 09:35 PM