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.
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.
No one should take advice from this character, I'll grant you.
Almost two years ago, I reviewed Michael Behe's latest book, The Edge of Evolution, here on the blog. I was unimpressed, to say the least, and remain of the opinion that Behe should not be considered a serious scientific thinker given his failure in that ludicrous book.
Mike Gene has posted an interesting series on introns that's worthy of a few comments. His thesis is that "introns facilitated the evolution of multicellular life." A. The idea is interesting and rational but not novel.
So Stephen Meyer of the Discovery Institute, a founder of the ID movement, wrote a book called Signature in the Cell: DNA and the Evidence for Intelligent Design. It came out last summer, and I ignored it. I ignored it because it didn't seem interesting or important or new, and there's always something interesting and important and new to read. (I recently finished The Road.
Welcome to Quintessence of Dust and to the 14th Edition of the monthly Carnival of Evolution. Thanks for stopping by, and for supporting scientific carnivalia, members of a taxon that seems to be flirting with extinction. One good reason to visit a carnival: brain stimulation.
Hello and welcome to the 28th edition of the genetics blog carnival known as Mendel's Garden, where we celebrate blogging on topics related to anything touching on what Mendel discovered (or thought he discovered). While reading these interesting and informative pieces, please think about work that should be featured in a future edition and/or blogs (like yours) that would serve well as future hosts. So do tomato seeds get you excited? No? Oh.
About 2 months ago, I finished a series on Michael Behe's latest book, The Edge of Evolution. I concluded that it was a terrible book, displaying significant errors of both fact and judgment. The book's main argument is a population genetics argument, and Behe seems to have little knowledge or understanding of that difficult subject.
It's exciting to live in the era of evolutionary genomics, when new genomes are being published approximately once a week, and the light of genomic analysis is being trained on more and more branches of the tree of life.