Matt Ridley

2. « Exactly the same applies to cancer cells, outlaw embryo tissues, segregation distorters and B chromosomes. Mutations that make genes suppress the selfishness of other genes are just as likely to thrive as selfish mutants. And there are far more places such mutations can occur : for every selfish mutation at one place, there are tens of thousand of other genes which will thrive if they accidentally stumble on mechanisms that cause the suppression of the selfish mutant. » (p. 33)