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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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DesignGenomeJunk DNABiologiaInglese
Pubblicato
Autore Stephen Matheson

So why is it that I and many other biologists hypothesize that introns are mostly non-functional? (I'll assume that you've read the previous posts, and that you understand what it is that I mean when I challenge claims that introns are functional elements in an information-rich genome.

GenomeJunk DNABiologiaInglese
Pubblicato
Autore Stephen Matheson

What does it mean to claim that an intron has a function? The question is obviously important, at least as long as there are disputes about whether introns have "functions" and whether science ignored them for decades. Now, I can't help the ID people with their propensity for repeating falsehoods about the history of "junk DNA" and the role of "Darwinism" in its characterization.

GenomeJunk DNABiologiaInglese
Pubblicato
Autore Stephen Matheson

Before we explore what introns are and how they work, let me correct the misuse of my words by one of the ID attack kittens. Months ago, referring to Steve Meyer's claim that introns "are now known to play many important functional roles in the cell," I sought to put intron "function" into context as follows: One critic has interpreted me as claiming that I know that 189,000 introns have no function.

Junk DNABiologiaInglese
Pubblicato
Autore Stephen Matheson

It's time to talk about introns and function, so at least the ID people and I can agree on what we're disagreeing about. First, though, a little housecleaning. When confronting the avalanche of misinformation on so-called "junk DNA" from intelligent design creationists, it can be hard to know where to start.

BiologiaInglese
Pubblicato
Autore Stephen Matheson

U2 can't make it to Michigan this year, due to Bono's back injury. (Me: "Ouch. He'll be fine." My girlfriend Susan: "What do you expect? He's old. He should pack it in.") So here are my attempts to fill the void. Continue reading...

BiologiaInglese
Pubblicato
Autore Stephen Matheson

...oh, Boston you're my home. Well, it was for five years, if Woburn counts as "Boston." And the lab was at least half my life, so sure, Boston was my home. But anyway, Wednesday through Saturday I'll be at Gordon College, on the North Shore, about 40 minutes from where we used to live, at this Biologos conference. And the point of all this?

Communicating ScienceDesignExplanationSignature In The CellBiologiaInglese
Pubblicato
Autore Stephen Matheson

Here I'm continuing my discussion of the Signature in the Cell book-signing event at Biola University on 14 May. You'll want to read Parts I and II before reading on. My second question to Steve Meyer was the one question I most wanted to ask him, both out of personal curiosity and because I thought the answer would help demystify many of his claims. The exchange that resulted was memorable – on that, everyone seems to agree.

Signature In The CellBiologiaInglese
Pubblicato
Autore Stephen Matheson

Here are some further observations on the Stephen Meyer book-signing appearance. Part I dealt with Meyer's talk and the other festivities. Here I'll describe the last third of the event, in which Art Hunt and I (the "powerful group of credentialed critics") spent a short time questioning Meyer. Continue reading...

BiologiaInglese
Pubblicato
Autore Stephen Matheson

So last week was the big book-signing shindig and Discovery Institute Annual Convention at Biola University. I knew the DI spin machine would move quickly, and sure enough I've already been quotemined and utterly misconstrued. But my real weakness is research, lab meetings and new papers to present in lab meeting, so some of you had to wait. I'm okay with that. Continue reading...