Mr Jack,
Yes, genetic drift and neutral genetic change occur and any general theory of evolution must take account of the; but they are not in themselves evolution. Thus JIM's statement "evolution can be aptly defined as the change in allele frequency over time" is false.
I agree that natural selection makes evolution compelling, but it isn't the whole story. There are both morphological & genetic characters that don't owe their prevalence to ns. It is still change over time, still evolution. Even your own examples change over time.
I think you are wrongly equating evolution with adaptation (in a pure sense). If butterflies with a particular wing vein pattern are replaced by another wing vein pattern, it is evolution even if drift or the founder affect was causal. Meaning drift & neutral theory
can be the chief agents of evolutionary change for particular characters in some cases. You can't write this off as not being evolution.
Certainly not in the sense of The Theory Of Evolution.
Certainly is! They are
synthesised as a part of the ToE, they can't be separated from modern evolutionary understanding. Pick up any modern evolutionary textbook.
If evolution is based on heredity, & the basic unit of that process is the gene, then allele frequency over time is a perfectly valid definition for evolution. Ultimately even macroevolution is explainable with this definition (lots of micro). It is a bit reductionist, I'll grant you, but valid nonetheless.
As far as I can see, the only real falsifying data would be non-allelic DNA having a phenotypic affect, & that very much depends on how you define gene or allele.
Mark
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"Physical Reality of Matchette’s EVOLUTIONARY zero-atom-unit in a transcendental c/e illusion" - Brad McFall