Hmmmm....
Got in on this late, but I note that it started like this:
towerwatchman 8 days ago
Mathematically Measuring Evolution.
When judging relationships in terms of morphological characteristics we will always be bound by the subjective. Morphologically one cannot exactly measure the distance between two organisms strictly in mathematical terms. Using the standard method of taxonomy we cannot quantify the difference between a horse and a mouse, or know which is closer mouse to cat, or mouse to fish. We cannot do this by just looking at the physical features of the creatures. A human may ‘look’ more complex than a frog but how much more in quantitative terms cannot be determined by morphology.
Biochemical level.
On the biochemical level the difference between two proteins can be quantified exactly and the results can be used to measure similarity or difference between species. What is needed is a common thread that runs through living things.
Cytochrome c is a small hemeprotein found loosely associated with the inner membrane of the mitochondrion. Cytochrome c is a highly water soluble protein, and is an essential component of the electron transport chain. Has a fundamental role in biological oxidation. Note found in a wide range of organisms from bacterial to mammals. It is about 100 amino acids long, has the same 3D configuration and possess an identical active site. What does vary between different organisms is the amino acid sequences. In Dayhoff’s Atlas of Protein Structure and Function there is a matrix with nearly 1089 entries showing the percentage sequence difference between thirty three different cytochromes taken from multiple species.
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There is simply an assertion that morphological measurements cannot be measured in a manner that tells the analyst anything. So, to remedy that, we are told to look at cytochrome c -which seems to have a scattered distribution, judging from what one would conclude from classifications of fauna even preceding evolutionary theory, e.g., developed by Carolus Linneaus. So we've got two straw men constructed and we are to presume that they knock the legs off evolutionary theory. No one is allowed a chance to address the assertion about morphological analyses and no one was asked to vote on the motion for using cytochrome c.
What about the genetic code itself?
What about the vanishing of species and new varieties appearing?
For something that was once described as natural philosophy, how does invoking a supernatural mechanism at every turn improve understanding of nature?
At best within the framework of a physical world experimental analysis can provide rules for natural behavior which we tend to categorize as laws or mechanisms. Yes, you might want to revise evolutionary theory, just as you would want to revise meteorology. But you would not want to substitute wind demons at the four corners of the Earth for fluid mechanics and thermodynamics.