Today many scientists describe their research as apolitical, but Haldane knew that was impossible: ‘I began to realise that even if the professors leave politics alone, politics won’t leave the professors alone.’
From a review in the Economist of a biography of JBS Haldane by Samanth Subramanian.
Two things to add. Haldane’s paper A Defense of Beanbag Genetics is a personal favourite, but sticking with the genetics theme, I think of politics, and many politicians, as examples of dominant negative mutations.