No Beneficial Mutations - Not By Chance - Evolution Theory In Crisis

Description: Bataillon) Abstract......It is argued that, although most if not all mutations detected in mutation accumulation experiments are deleterious, the question of the rate of favourable mutations (and their effects) is still a matter for debate. www.nature.com Distribution of fitness effects caused by random insertion mutations in Escherichia coli Excerpt: At least 80% of the mutations had a significant negative effect on fitness, whereas none of the mutations had a significant positive effect. ...