nMajor mutations such as bithorax “are such evident freaks that these monsters can be designated only as ‘hopeless.’ They are so utterly unbalanced that they would not have the slightest chance of escaping elimination” through
natural selection.
nHarvard Biologist Ernst Mayr, 1963.
n“geneticists have
found that the number of wings in
flies can be changed through mutations in a single gene.”
nNational Academy of Sciences Booklet, 1998.