“Junk DNA” and the Molecular Basis of Cell Identity

Once thought to be “junk,” or functionless vestiges of once-protein-coding-genes which have, through the course of evolutionary history, mutated to a state of non-functionality, the research documents that these lincRNAs have an extremely important — even crucial — role with respect to the determination of cellular identity.

Does Gene Duplication Perform As Advertised?

In my previous post, I highlighted a recent peer-reviewed paper which challenged a key tenet of neo-Darwinian evolution — specifically, the causal sufficiency of gene duplication and subsequent divergence to account for the origin of novel biological information. In this follow-up blog, I want to consider some of the case-studies examined in the paper and relay some of the conclusions drawn.