Now, following complicated lab procedures, geneticists from Edinburgh and Warsaw have observed interesting phenomena among tRNA genes that sometimes generate long, 3'-extended forms by read-through of the canonical poly(U) terminators. They propose that the genes have "housekeeping" roles, sustained at the proper level "due to targeting by the nuclear surveillance machinery." We see here more evidence for robust software management.

03 Jun 2016

What'sNEW about HGT |

The insert was found to be present in 105 out of 110 fully black moths (wild caught in the UK since 2002) and absent in all (283) typica tested....
The probability density for the date of the carb-TE mutation event is highly skewed ...with a maximum likelihood at 1819, a date highly consistent with a detectable frequency being achieved in the mid-1840s.
The carb-TE is a spectacular example of an adaptively advantageous transposon; its discovery fills a fundamental gap in the peppered moth story and furthers our appreciation of the mechanism underpinning rapid adaptation. A consensus on the general importance of transposable elements for adaptive evolution has yet to emerge. Over longer time frames, phenotypic effects of transposable elements may be obscured by imprecise excision that leaves a minimal trace of the transposable element while retaining the mutant (adaptive) phenotype. By contrast, we have shown that the carb-TE is young, approximately 200 years (generations) old, during which time it has gone from a single mutation to near fixation (regionally) to near extinction-driven by a pulse of environmental change.

The report begins, "Disovering the mutational events that fuel adaptation to environmental change remains an important challenge for evolutionary biology. The classroom example of a visible evolutionary response is industrial melanism in the peppered moth (Biston betularia): the replacement, during the Industrial Revolution, of the common pale typica form by a previously unknown black (carbonaria) form, driven by the interaction between bird predation and coal pollution." Now we see that the dark variant emerged following the precise insertion of a specific large transposable element into a certain gene. This phenomenon supports cosmic ancestry and surprises standard darwinism. Coming from the peppered moth, beloved by darwinists, the example is especially ironic.

Ribbon diagram representations of some of the molecular components of the U4/U6.U5 triple small nuclear ribonucleoprotein (tri-snRNP) complex are shown within the cryo-EM structure.

"The recent structural models of the spliceosome in different steps of the splicing reaction represent a turning point for the field, reminiscent of the change that occurred when structures of the protein-synthesizing machine—the ribosome—were resolved in 2000.... Now, dozens of ribosome and ribosomal subunit structures are determined every year. With the advent of high-resolution cryo-EM, the same is likely to be true for the spliceosome over the next decade."

As this exploration proceeds, one would expect to notice abundant corroboration for the standard theory of evolution. So far, we don't see it. The human splicesome has some components closely orthologous to those in yeast, and others that look wholly different. Either way, the complex mechanisms and the lengthy programs behind them have no plausible, reconstructable origin, as darwinism would require.

In cosmic ancestry, splicing and editing are essential for evolution. Instead of how, we wonder if they originated. Without the big bang, what's the evidence?