Quote:
Originally Posted by basilisk888  well it is a theroy but its one that is proven by looking at the past... if you look then you can see the splitting of the diffrent liveing things... they all have a comon desent... like how we are related to chimps... |
That is not
proven even if you personally
believe homologous decent to be true. If it was proven it wouldn't be a
Theory. Or to put it in the context of our previous conversation - it is a
subjective truth not an absolute truth.
Congratualtions, you have a religion.
BTW:
Do Human and Chimpanzee DNA Indicate an Evolutionary Relationship? Quote:
In January 2002, a study was published in which scientists had constructed and analyzed a first-generation human chimpanzee comparative genomic map. This study compared the alignments of 77,461 chimpanzee bacterial artificial chromosome (BAC) end sequences to human genomic sequences. Fujiyama and colleagues “detected candidate positions, including two clusters on human chromosome 21, that suggest large, nonrandom regions of differences between the two genomes” (2002, 295:131). In other words, the comparison revealed some “large” differences between the genomes of chimps and humans.
Amazingly, the authors found that only 48.6% of the whole human genome matched chimpanzee nucleotide sequences. [Only 4.8% of the human Y chromosome could be matched to chimpanzee sequences.]
...
The older textbooks on evolution make much of the idea of homology, pointing out the obvious resemblances between the skeletons of the limbs of different animals. Thus the “pentadactyl” [five bone—BH/BT] limb pattern is found in the arm of a man, the wing of a bird, and flipper of a whale—and this is held to indicate their common origin. Now if these various structures were transmitted by the same gene couples, varied from time to time by mutations and acted upon by environmental selection, the theory would make good sense. Unfortunately this is not the case. Homologous organs are now known to be produced by totally different gene complexes in the different species. The concept of homology in terms of similar genes handed on from a common ancestor has broken down... (as quoted in Fix, 1984, p.189).
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...and information like that is why it remains a theory.