Sandwalk

The Three Domain Hypothesis died about twenty years ago but most people didn't notice.
The original idea was promoted by Carl Woese and his colleagues in the early 1980s. It was based on the discovery of archaebacteria as a distinct clade that was different from other bacteria (eubacteria). It also became clear that some eukaryotic genes...

There are many junk DNA skeptics who claim that most of our genome is functional. Some of them have even questioned whether pseudogenes are mostly junk. The latest challenge comes from a recent review in Nature Reviews: Genetics where the authors try...

We learned back in 2012 that Massive Open Online Courses (MOOCs) were going to transform higher education. People all over the world, especially in underdeveloped nations, would be able to learn from the best university professors while sitting at home...

There are many reasons for thinking that introns are mostly junk DNA.
The size and sequence of introns in related species are not conserved and almost all of the sequences are evolving at the rate expected for neutral substitutions and fixation by drift....