Biological SciencesBlogger

Quintessence of Dust

Quintessence of Dust explores science, society, and human nature, focusing on genetics, development, evolution, neuroscience, systems biology, and topics related to scientific literacy. I occasionally discuss intelligent design, creationism, science denial, and other political/social influences on scientific literacy. Additional topics: philosophy, baseball, scientific culture, and Shakespeare. My main theme is scientific explanation.
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Published
Author Stephen Matheson

Shall we play a game? Recall Hugh Ross' fictional tale about the "team of physicists" that remade molecular genetics. Ross claimed, falsely, that:The biological truth is the opposite: amount of DNA, "junk" or otherwise, is so uncorrelated with other aspects of biology that the situation was termed a paradox when it was first uncovered. Well...let's see the paradox in living color.

Published
Author Stephen Matheson

That's Tom de Kay, editor of the Home & Garden section of the New York Times. Last week Thursday, that section ran a story, "A Refugee from Gangland," describing the life of Margaret B. Jones, the author of a just-released "heart-wrenching memoir" set in gangland L.A. The Times piece is fascinating, and the memoir probably is too. One little problem: the memoir has just been revealed to be a fraud.

Published
Author Stephen Matheson

Can you tell which of the authors quoted above won a Pulitzer? Heh.Back to the big lie about "junk DNA" as told by anti-evolution propagandists. The first theme in this cesspool of creationist folk science, as I described in the first installment of this series on "junk DNA", is this: that "junk DNA" is functional and therefore that evolutionary claims regarding its origin are mistaken.

Published
Author Stephen Matheson

In another post in this ongoing series, we looked at creationist distortions of the nature of research into non-coding DNA, or "junk DNA." There I mention how creationists of all stripes are quite fond of the claim that "Darwinist" assumptions led to the labeling of all non-coding DNA as non-functional, and thereby to the neglect of research in the field for three decades.

Published
Author Stephen Matheson

One of the most common refrains of anti-evolutionists is the claim that evolutionary mechanisms can only degrade what has already come to be. All together now: "No new information!" It's a sad little mantra, an almost religious pronouncement that is made even more annoying by its religious underpinnings, hidden or overt. But it's a good question: how do new genes come about?

Published
Author Stephen Matheson

UPDATE: answers posted at the end.Which of these plant specimens doesn't belong? (Images will be properly credited in a forthcoming article which will explain why they're so interesting.)The images are all the same magnification, but have been colorized so that the color won't give you any clues. Focus on the structure of each specimen, and pick one that doesn't belong with the others. (Insert Sesame Street reference here.) 1234Want a hint?

Published
Author Stephen Matheson

If you have only read the more superficial descriptions of intelligent design theory, and specifically the descriptions of irreducible complexity, you might (reasonably) conclude that Michael Behe and other devotees of ID have claimed that any precise interaction between two biological components (two parts of a flagellum, two enzymes in the blood clotting cascade, or a hormone and its receptor) cannot arise through standard Darwinian evolution.