Pete Seeger is dead. That means something to those of us who grew up in the 1960s. It was a time when opposition to war was so strong and so powerful that we thought it might bring an end to all wars.
We were so naive.
Peter Seeger wrote one of the most famous anti-war songs of all time, "Where have all the flowers gone." Peter, Paul, and Mary made it a big hit—and so did others. Here's Pete Seeger singing with them for the last time. This should be the anthem that marks the 100th anniversary of the beginning of World War I.
When will we ever learn?
We will be in Greenwich Village this weekend and I'll be thinking of Pete Seeger. Seeger also wrote "Turn! Turn! Turn!" Here's the best version by the Byrds: "A time for peace, I swear it's not too late."
John Hawks is a pretty cool guy. He studies anthropology with a special emphasis on the genetics of human evolution over the past million years or so. Right now he's in Ethiopia looking at fossils. I visited him a year ago at his lab in Madison, Wisconsin.
He written a summary of seven things about evolution. You should read what he has to say to see if you know enough about evolution. Here's a list of the seven things but each one requires a bit of explanation.
Evolution is change in a population
Evolution is genetic change
Many kinds of genetic changes are important to evolution
Evolution can be non-random
Evolution can be random, too
Populations evolve all the time
Evolutionary theory has changed a lot since Darwin's day
Last week's molecule was cholesterol [Monday's Molecule #229]. The figure shows how the molecule would look in a lipid bilayer (membrane). The winner was Tommy Stuleanu.
This week's molecule (below) is going to be hard. I won't be surprised if nobody gets the right answer. It's a key intermediate in an extremely important reaction. You need to give the common name AND the the overall reaction. Name the enzyme as well.
Email your answer to me at: Monday's Molecule #230. I'll hold off posting your answers for at least 24 hours. The first one with the correct answer wins. I will only post the names of people with mostly correct answers to avoid embarrassment. The winner will be treated to a free lunch.
There could be two winners. If the first correct answer isn't from an undergraduate student then I'll select a second winner from those undergraduates who post the correct answer. You will need to identify yourself as an undergraduate in order to win. (Put "undergraduate" at the bottom of your email message.)