Responding to Merlin Part IV – A Clear Picture of a Directed Mutation
This is a multi-part post in response to Merlin’s paper, “Evolutionary Chance Mutation: A Defense of the Modern Synthesis’ Consensus View”. See introduction and table of contents.
In the last installment, we talked about how Merlin tried to paint a whole range of semi-directed mutations as “evolutionarily random”, and how this falls short when compared to the motivation behind Darwinism in the first place – to remove any hints of teleology from biological description.
However, Merlin also describes what she would consider as evidence of directed mutation – a bias in mutations that produce exclusively adaptive mutations. In the previous installment I showed why this was an overly stringent requirement. However, even as a requirement, there are experiments showing that at least some directed mutations occur.
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