Biology 1001A Lecture Notes - Gene Therapy, Menopause, Assortative Mating
4 Sep 2013
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Student answers: survivorship is much higher, less struggle for existence, perhaps natural selection not necessary. Historically we would have adapted to fit our environment, now we adapt our environment to suit ourselves. Yes but not in the same direction, as our environment is so different our directional selection is favouring very different traits than would have been historically favoured. Selection is not the only mechanism resulting in evolution. Genetic drift is not as prevalent as it was in the past. Genetic structure is changing , exchanging of alleles is becoming a very common thing. There are no new populations that could suddenly introduce radical alleles. Believing as i do that man in the distant future will be a far more perfect creature than he now is darwin thought that not only are humans still evolving but still due to some form of selection.
