Sandwalk

I've visited Los Angeles in February. There are lots of cool things you can do, like going to the beach with your granddaughter or spend...

A group of Czech scientists have fired a big laser at a solution of formamide and found traces of adenine, guanine, cytosine, and uracil (Fe...

This is a rather slow time for comedy so I thought I'd alert you to the Top Ten Evolution Stories of 2014 as reported by IDiots. #10 A...

There's a fabulous editorial in the Toronto Star today. It's critical of the Prime Minister and the Conservative Party of Canada for...

New Scientist published a short article on How to think about. Evolution . It was written by Michael Le Page who contacted me a few months ...

Last January I posted a note about how stressful the job of university professor can be [ University Professor is one of the least stressful...

Alternative splicing is a mechanism where am intron-containing gene is transcribed and the primary transcript is spliced in two or more diff...

My university (the University of Toronto, Toronto, Canada) recently developed a new policy and new procedures on undergraduate student evalu...

Student evaluations are an important part of the undergraduate experience at most universities. But how effective are they? You would thin...

We've been discussing Ann Gauger's claim that evolution is impossible because she was unable to transform a modern enzyme into anoth...

Here's a video by Dr. Lodge McCammon. He has a website: lodgemccammon.com . Here are his credentials. Dr. Lodge McCammon is an educatio...

The students in my lab course measured the activity of trypsin at different pH's. They discovered that the enzyme was most active at a p...

Most biochemistry students are taught that enzymes are highly specific. It's certainly true that the stereospecificity of some enzymes i...

One of the other exam questions is based on an experiment students did with an enzyme they purified. They digested the enzyme with trypsin a...

The students in my lab course are writing their final exam. Prior to the exam they were given 22 questions and they knew that five of them w...