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Nitram

(22,800 posts)
6. OK, some of this sounds very amateurish and based on questionable science.
Mon Dec 12, 2016, 03:38 PM
Dec 2016

For example, the author writes that it is impossible for two brown-eyed parents to have a blue-eyed baby. Actually it's exactly the opposite. It's impossible for two blue-eyed parents to have a brown-eyed baby, but if two brown-eyed parents both have a recessive gene for blue eyes, their kid can have blue eyes. For another, the lack of wisdom teeth doesn't mean an individual "represents" evolution. It means they are one of a minority of people who inherited a gene that omits wisdom teeth. Since no one suffers an early death from having or not having wisdom teeth, there is no evolutionary pressure for an evolutionary trend in this regard. The author would have done better to have avoided the awkward evolutionary aspect of his argument altogether. There is no evidence of "evolution" in modern man. Modern medicine and technology compensate for traits that might have resulted in a failure to pass on disadvantageous genes. Evolution only occurs when a new gene becomes more common in a population, or an old gene becomes less common, due to death occurring before reproduction has a chance to take place. Perhaps the evolutionary theme in the piece makes more sense as a metaphor.

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