Archive for October, 2014
Mutation + Selection = Stasis
The genetic mutation plus natural selection equation emerged as the most popular theory of biological evolution during the twentieth century. With advances in biotechnology, however, the credibility of this theory – popularly known as neo-Darwinism or the Modern Synthesis theory – has since been increasingly challenged by evolutionary scientists.
In an experimental evolution model using the yeast microbe Saccharomyces cerevisiae, a recent study published in the journal Science by a Harvard research group undermines the theory of genetic mutations plus natural selection equals evolution. The model demonstrates stasis – not evolution.