Useful application of Darwin’s theory is also used in screening BETWEEN human populations.
How do you explain human variations?
How do you explain all terrestrial modern species descended from all those that could fit on a boat of known dimensions within the last few thousand years without reference to Darwin’s theory?
How do you explain microbial resistance to novel antibiotics without reference to Darwin’s theory?
Do you think taking the same flu shot every year is going to be effective?
How do you explain why not without reference to Darwin’s theory?
Do you think no explanation is necessary?
How do you explain human variations?
The same way Gregor Mendel (a YE creationist) considered the "father of modern genetics" did.
How do you explain all terrestrial modern species descended from all those that could fit on a boat of known dimensions within the last few thousand years without reference to Darwin’s theory?
Its easier to prove that a pair of dogs containing all the genetic material to spawn variations of dogs, wolves and coyotes then it is to say that a pair of horses spawned a poodle. The Scriptures say that each reproduced after its own kind, Evolutionists claim, without evidence, that one kind begets another. Whatever the scope of "kind" is, I'm pretty sure that a bird doesn't eventually spawn an elephant, thus no two coyotes, wolves and dingos were needed, just a pair of dogs that God led to the ark.
How do you explain microbial resistance to novel antibiotics without reference to Darwin’s theory?
You must not understand Evolution if you think that a loss of genetic information is evolving up. Microbial resistance has been found to be, simplistically speaking, a matter of the organism losing information and natural selection, not generating new and improved behavior. Neo Darwinism, which is what you are implying, has been disproved by evolutionary biologists and mathematicians back during the Wistar Symposium in 1967. The math doesn't support the theory at all. The result of the conference was to make a whole bunch of post-neo-Darwinists.
Do you think taking the same flu shot every year is going to be effective?
Again, if you believe that, you don't understand the various theories of evolution because none of them explain the difference in a flu bug from year to the next.
Among many of the wild claims of evolution is that there is this theory about "beneficial mutations" arising randomly that eventually will transform the virus into something other than a virus - like a squid.
How immune systems operate is where the antibodies can detect a certain appearance of virus proteins whereas a random mutation, while it conveys no new ability to the virus (as evolution requires), it does serve to mask the virus from being detected. This is nothing more than application of observable natural selection - NOT evolution.
Do you think no explanation is necessary?
I still say that thinking about it in evolutionary terms is wasteful. That is why it took so long for scientists to find a cure for the Spanish Flue in the early 20th century - the researchers were constantly applying evolutionary thought and constantly failing while millions were dying.
It is without dispute that the greatest contribution of Evolution to modern man is the application and practice of Eugenics, certainly not a treasured gift.