
Structure of a gene regulatory network. Image courtesy of Wikipedia.
In a series of three articles (see here, here and here) over at Evolution News and Views, Dr. Casey Luskin, a geologist and an attorney who is also an Associate Director and Senior of the Center for Science and Culture, recently discussed the question of whether mutations in gene regulatory networks are capable of giving rise to significant changes in phenotype. Dr. Luskin argued that unguided processes, be they microevolutionary (i..e. neo-Darwinian) or macroevolutionary, are simply unable to account for the evolution of new body plans.
Dr. Luskin’s articles were irenic in tone and commendably fair in their discussion of opposing views. The author’s style of exposition was also admirably lucid. However, what struck me most about the articles was their use of dated sources. Reading them, I felt like I was stepping back in time.
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