childeroland
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What about the fact that there were experiments done on Flies, where scientests tried to mutate them into permanent eyelessness and after many generations they couldn't?
Scientists can turn on and off the fly's master control gene for the compound eye, resulting in eyelessness. They've also discovered mutant flies with no eyes whose eye master control gene are a mutant form of the master control eye gene in normal flies. It turns out the normal gene can be mutated to produce eyelessness but still produces a protein that appears to turn other genes on and off in order to start the process of making eyes in subsequent generations. This gene is homologous to genes in humans and mice, and mutations in the gene produces similar results to mutations in eye control genes in humans and mice. The mouse counterpart of the eyeless gene -- that is, the mutated and normal master control gene -- also causes eye formation when it is put into fruit flies. The similarity in eye master control genes in different species suggests that they share a distant common ancestor.
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