Author: Jonathan McLatchie
Nick Lane Takes on the Origin of Life and DNA
Recently, Nick Lane, a biochemist and Provost’s Venture Research Fellow in the Department of Genetics, Evolution and Environment at University College London, published a new book, Life Ascending: The Ten Great Inventions of Evolution. Nick Lane lays out ten biological phenomena for which he seeks to propose plausible evolutionary explanations. Among the phenomena discussed by Lane are the origin of life, DNA, photosynthesis, the complex cell, sex, movement, sight, hot blood, consciousness, and death. But does Darwinism have the goods? Or does Nick Lane offer us only a series of wishful speculations? New Scientist offered the following praise for Lane’s work: What makes this such a great read is that Lane, a biochemist by training, does not simply rehash the Read More ›
The ‘Junk DNA’ Paradigm Continues To Collapse As New Functions Are Discovered For Retrotransposons
The literature continues to flood in demonstrating that so-called ‘junk’ regions of the genome are not junk after all, but serve significant and important functions. One such recent paper reports evidence that retrotransposons may play significant roles in the cell. According to the abstract, Retrotransposons including endogenous retroviruses and their solitary long terminal repeats (LTRs) compose >40% of the human genome. Many of them are located in intergenic regions far from genes. Whether these intergenic retrotransposons serve beneficial host functions is not known. Here we show that an LTR retrotransposon of ERV-9 human endogenous retrovirus located 40–70 kb upstream of the human fetal γ- and adult β-globin genes serves a long-range, host function. The ERV-9 LTR contains multiple CCAAT and Read More ›
Simple Logic (and the Data) Refute PZ Myers on ‘Junk DNA’ (Updated)
A few weeks ago, PZ Myers commented on so-called ‘Junk DNA’. Under the headline, ‘Junk DNA is still junk’, Myers wrote: The ENCODE project made a big splash a couple of years ago — it is a huge project to not only ask what the sequence of a strand of human DNA was, but to analyzed and annotate and try to figure out what it was doing. One of the very surprising results was that in the sections of DNA analyzed, almost all of the DNA was transcribed into RNA, which sent the creationists and the popular press into unwarranted flutters of excitement that maybe all that junk DNA wasn’t junk at all, if enzymes were busy copying it into Read More ›
Is Messenger RNA Regulation Controlled by an Irreducibly Complex Pathway?
What we know about the complexity of the cellular information storage, processing and retrieval mechanisms continues to increase exponentially, and at an unprecedented rate. Almost on a daily basis, new papers are published revealing the ingenuity of the elaborate mechanisms by which the cell processes information — processes and mechanisms that bespeak design and continue to elude explanation by Darwinian means. For how exactly could such a system – apparently, an irreducibly complex one – be accounted for in terms of traditional Darwinian selective pressure? A new paper has just been published in Molecular Cell, in which the researchers, Karginov et al. reported their discovery that messenger RNA (mRNA) can be targeted for destruction by several different molecules. According to Read More ›
The Recapitulation Myth
Casey Luskin recently posted two blogs showing that textbooks still misuse Haeckel’s long-discredited embryo drawings when attempting to provide evidence for Darwinian evolution (see here and here). Luskin provided ample documentation to demonstrate that these drawings are still printed in some recent textbooks. Over at The Panda’s Thumb blog, apologists for Darwinian theory have defended (see here and here) Ernst Haeckel from the charge of fraud and have argued, albeit unconvincingly, that, in principle, the concept of recapitulation is a valid one.According to Nick Matzke: Haeckel didn’t ignore the differences in embryos in the earliest period just after fertilization (differences which are visually significant but mostly fairly trivial, due to the different amounts of yolk in different vertebrate eggs).