However, Creationists are quick to point out that both of these examples are simply narrowing the gene pool, rather than producing new alleles.
Like most things that creationists say, they are quite unclear about exactly how they think this works. Near as I've ever been able to suss it out, they seem to think that the genetic make up of each different breed of dog is simply a subset of all dog genes, and these dog genes were present when the first dog kind was created. Selective breeding then eliminated all the non-beagle genes to create beagles, eliminated all the non-basset hound genes to create basset hounds, etc.
You'll likely never be able to get one of them to admit that this is what they think, because when clearly expressed, the idea sounds as absurdly silly as it is. But I'm pretty sure that's what they have in mind.
Ridicule is the only weapon which can be used against unintelligible propositions. Ideas must be distinct before reason can act upon them; and no man ever had a distinct idea of the trinity. It is the mere Abracadabra of the mountebanks calling themselves the priests of Jesus. -- Thomas Jefferson
For we know that our patchwork heritage is a strength, not a weakness. We are a nation of Christians and Muslims, Jews and Hindus -- and non-believers. -- Barack Obama
We see monsters where science shows us windmills. -- Phat
It has always struck me as odd that fundies devote so much time and effort into trying to find a
naturalistic explanation for their mythical flood, while looking for
magical explanations for things that actually happened. -- Dr. Adequate