Wednesday, February 23, 2022

Interesting …

New Study in Nature Showing “Non-Random” Mutation Spells Trouble for Neo-Darwinism.


The implications for evolutionary biology are profound. If mutations aren’t equally distributed across the genome, and aren’t random with respect to the needs of the organism, then two basic tenets of the standard neo-Darwinian model are false. This also could spell trouble for neo-Darwinism because it suggests that mutation rates are lowest in areas where mutations would presumably be needed to foster evolution — i.e., they are lowest in the genes.

If mutation rates are low in the gene-coding DNA, then it will take even longer for new complex traits to arise by mutating functional genes. This exacerbates what Darwin-skeptics call the “waiting time” problem, where it takes too long for necessary mutations to arise — far longer than the amount of time allowed by the fossil record. 

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