When one wants to modify an enzyme for a new function, as Matti Leisola explains in his new book, there are two ways to go about it.
Ask evolutionists for a clear, unambiguous example of a new gain in function by chance at the genetic level. They will be hard pressed to show one.
The supposed sudden emergence of the enzyme nylonase has been a chief talking point for the power of evolution for many years.
New proteins had to come from somewhere. Susumu Ohno had an idea.
Yesterday, I described how some biologists claim that the enzyme nylonase demonstrates that it is easy to get new functional proteins.