From Brian Miller at ENST:
In a previous article I described how scientific training can condition some scientists’ minds to resist the evidence in nature for intelligent design. Now, I will demonstrate the effects of this process using as a case study the book Adam and the Genome: Reading Scripture after Genetic Science, co-authored by Dennis Venema. I must begin by stating that I have never met Dr. Venema, but I have met several of his colleagues, and from my encounters with them I have no reason to doubt that Venema desires to operate with complete integrity and to present scientific claims and arguments that are of the highest academic quality. The challenge he faces lies not with his character or knowledge but with the materialist framework that has distorted his perspective.
Along the same lines, Venema cites research that demonstrates how mutations generated new “functions” in various organisms. For instance, he describes a virus that developed the ability to bind to a new protein in E. coli labeled OmpF. However, he greatly exaggerates the magnitude of the change. The binding did not represent a truly novel innovation, but it resulted from the virus simply gaining a few mutations which enhanced in an already present protein an existing ability. He makes similar misguided claims about research he marshalled to challenge the evidence for the rarity of proteins. What Venema fails to appreciate is that increasing numbers of evolutionary biologists have come to recognize that the types of microevolutionary developments he identifies cannot accumulate to produce large-scale changes such as a fish turning into an amphibian. One central challenge is that such transformations require, among other needs, the rewiring of networks of genes which guide the development of an organism, but such alterations are always harmful. Arguing that the trivial changes he cites could accumulate to generate a major innovation is like a dog owner who was able to train his German Shepard to fetch a stick in a day then claiming he proved that he could train it to play Mozart on a piano in a month. More.
Many people have a hard time with the fact that changes reach a ceiling, and sometimes quite a low one. Those people make faithful Darwinists, irrespective of their other convictions.
See also: Are Adam and Eve genetically possible? The latest: Richard Buggs (yes) replies to Dennis Venema (no)