Tag Archives: Evolution

Moran, Gregory, Give me a Break!

Well, it is a good thing that I have a thick skin and a good sense of humor, or I would be very put off by Larry Moran and probably T. Ryan Gregory as well.Apparently, I stepped into an ongoing partially ad hominem debate over “Junk DNA” centering on the work of John Mattick and his research group. In this post, I’d like to provide a clarification of my “position” on Junk DNA, and I’ll spend a moment admonishing my colleagues for being dorks. Continue reading Moran, Gregory, Give me a Break!

Genes are only part of the story: ncRNA does stuff

Blogging on Peer-Reviewed ResearchYou know that organisms develop, grow, and function in part because genes code for proteins that form the building blocks of life or that function as working bioactive molecules (like enzymes). You also know that most DNA is junk, only a couple percent actually coding for anything useful. Most importantly, however, you know that everything you know is wrong. Right? Continue reading Genes are only part of the story: ncRNA does stuff

Happy Birthday Alfred Russel Wallace

i-fc88700fc2c140b083836019317d5295-wallace.jpgWe are reminded, via Mousie Cat at Evolving in Kansas, that Yesterday (I’m so embarrassed I missed this) was Alfred Russel Wallace’s birthday!Wallace was born in 1823.

We should now clearly recognise the fact, that the wealth and knowledge and culture of the few do not constitute civilization, and do not of themselves advance us towards the “perfect social state.” Our vast manufacturing system, our gigantic commerce, our crowded towns and cities, support and continually renew a mass of human misery and crime absolutely greater than has ever existed before. They create and maintain in life-long labour an ever-increasing army, whose lot is the more hard to bear, by contrast with the pleasures, the comforts, and the luxury which they see everywhere around them, but which they can never hope to enjoy; and who, in this respect, are worse off than the savage in the midst of his tribe.- A.R. Wallace in The Malay Archipelago, 1869.

The conclusion from these three independent proofs, which enforce each other in the multiple ratio of their respective weights, is therefore irresistible–that animal life, especially in its higher forms, cannot exist on the planet.Mars, therefore, is not only uninhabited by intelligent beings such as Mr. Lowell postulates, but is absolutely UNINHABITABLE.- A.R. Wallace in Is Mars Habitable? 1908

Why is There no Birth Control Pill for Men?

i-fc0baa42c324cefa8495fdb0044234b2-dice.jpg Why is there no Birth Control Pill for men?This latest “Ask a ScienceBlogger” question will certainly engender a wide range of responses from the Scienceblogs.com team. Answers may address physiology, endocrinology, pharmacology, economics, and other areas of scientific thinking and practice. The answer I’d like to propose can be summed up in two closely linked words pilfered from the question itself: Continue reading Why is There no Birth Control Pill for Men?

Lamarckian Mechanism in Ciliates

A group of scientists … has uncovered a new biological mechanism that could provide a clearer window into a cell’s inner workings…..What’s more, this mechanism could represent an “epigenetic” pathway — a route that bypasses an organism’s normal DNA genetic program — for so-called Lamarckian evolution, enabling an organism to pass on to its offspring characteristics acquired during its lifetime to improve their chances for survival.

Continue reading Lamarckian Mechanism in Ciliates