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Which of the scores of species of "South American tree frogs" has CP compared with Xenopus (which, by the way, is not a tree frog but an aquatic clawed frog)? If he had even a small knowledge base in morphology he would know that Xenopus is likely to be distinct from ANY "South American tree frog" in nearly every bone. Be not so quick to condemn that of which you are obviously ignorant. Sorry to be so pedantic, but it's EpidoNax, not EpidoMax. Spelling counts in words as well as in nucleotide sequences. Morphology (phenotype) is important in evolution simply because it is phenotypes that are exposed to selection; selection does not act directly on genes, non-coding or otherwise. In fact, it is this quality which makes non-coding genes useful in constructing phylogenetic hypotheses. Surely there is a place in evolutionary studies for both molecular genetic and phenotypic evidence. Since molecular phylogenies based on different molecules often disagree, morphological evidence or the fossil record can help to resolve the questions. Molecular evidence is part of the answer, but it is not the whole answer. I suggest we find another Moses to lead us out of the wilderness. Best wishes, Bill ___________________ William A. Shear Department of Biology Hamden-Sydney College Hampden-Sydney VA 23943 USA phone (804) 223-6172 FAX (804) 223-6374
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