A final proof of our ideas can only be obtained by detailed studies on the alterations produced in the amino acid sequence of a protein by mutations of the type discussed here.
Francis CrickThis seems highly likely, especially as it has been shown that in several systems mutations affecting the same amino acid are extremely near together on the genetic map.
Francis CrickWe have to take away from humans in the long run their reproductive autonomy as the only way to guarantee the advancement of mankind.
Francis Crick