Sandwalk

There are many reasons for thinking that introns are mostly junk DNA. The size and sequence of introns in related species are not conserved...

Citrate synthase [ EC 2.3.3.1 ] is one of the key enzymes of the citric acid cycle. It catalyzes the joining of acetyl-CoA and oxaloacetate ...

I was browsing the table of contents of the latest issue of Cell and I came across this .... For decades, the miniscule protein-coding por...

De novo genes are new genes that arise spontaneously from junk DNA [ De novo gene birth ]. The frequency of de novo gene creation is impo...

It's difficult to know how many protein-coding genes there are in the human genome because there are several different ways of counting ...

This is the 2019 Killian lecture at MIT, delivered in April 2019 by Gerald Fink . Fink is an eminent scientist who has done excellent work o...

I'm a big fan of Richard Lenski's long-term evolution experiment (LTEE) and of Zachary Blount's work in particular. [ Strolling ...

Evolution by Accident v1.43 ©2006 Laurence A. Moran This essay has been transferred here from an old server that has been decommissioned. ...

A paper announcing the first complete sequence of a human chromosome has recently been posted on the bioRxiv server. Miga, K. H., Koren, S....

It's been more than seven years since I posted information on how much of the human genome has been sequenced [ How Much of Our Genome I...

This the last of a series of posts by Arlin Stoltzfus on the role of mutation as a dispositional factor in evolution. Arlin has established ...

This is part of a continuing series of posts by Arlin Stoltzfus on the role of mutation as a dispositional factor in evolution. In this post...

This is part of a continuing series of posts by Arlin Stoltzfus on the role of mutation as a dispositional factor in evolution. In this post...

I was checking out the science books in our local bookstore the other day and I came across Evolution 2.0 by Perry Marshall. It was publish...

This is part of a continuing series of posts by Arlin Stoltzfus on the role of mutation as a dispositional factor in evolution. In this post...