The identification of geographical patterns in microbial distributions has begun to challenge purely ecological explanations of biogeography and the underlying principle of “everything is everywhere: ...

Before cells can divide, they first need to replicate all of their chromosomes, so that each of the daughter cells can ...

Sometimes, identical genes will produce different expression patterns. Why? Geneticists are now examining the "penetrance" and "expressivity" of genotypes and their phenotypes. In fact, large ...