Such changes can bring about specific amino acid substitutions, alternative splicing and changes in gene expression levels.http://www.scienc...10000405
amino acids are fixed in the DNA of organized genomes
DNA does not contain amino acids.-- and clips the part about organized genomes.
... if the number of proteins grows exponentially with the number of amino acids and the nutrient-dependent amino acids are fixed in the DNA of organized genomes in species from microbes to man via their pheromone-controlled physiology of reproduction,
how is something else linked to changes in DNA?
If you want more information, there's plenty to be found.
You understand nothing about@jk
I can clarify that although our work does, we hope, provide an example of how nutrition/ecology could affect the evolution of potentially adaptive traits, you [CAPT] are right that we in no way claim that mutations in the heritable genome play no role in evolution. Indeed, as you [CAPT] correctly state, just because we provide evidence that nutritional conditions play a role, this does not negate a role for mutations. Indeed, in that very same paper, we provide evidence that heritable differences in the genome sequences between Drosophila species, in other words, mutations, ALSO play a role in the evolution of the trait we are studying.EPIC FAIL for jk
So Kohl is mistaken if he is claiming that my study (or Rich Lenski's work) provide evidence AGAINST the role of mutations in evolution.
Things like splicing and silencing, which RNAs are responsible for, do not make changes to the DNA.
If you were right, all organisms would have the same genome and only differ by which genes they express and how often. That's not the case.
Although nothing can be done to keep science idiots from misrepresenting our works, I also posted this to phys.org@jk
...serious scientists are "Combating Evolution to Fight Disease" http://www.scienc...88.short@jk
in bacteria, responses to environmental stress can activate mutagenesis mechanisms that increase mutation rate, which can potentially increase the ability of a cell to evolve, specifically when it is poorly adapted to its environment (when stressed). Most of a 93-gene network that promotes mutagenesis in Escherichia coli is devoted to sensing stress and activating stress responses that direct the bacterium to mutate when stressed (3). Stress responses also up-regulate mutagenesis in yeast (4) and human cancer cells (5) and underlie mutations induced by antibiotics that cause resistance to those very drugs, and others (6).not only did you NOT READ IT
...serious scientists are "Combating Evolution to Fight Disease" http://www.scienc...88.short@jk
Our detailed model@jk
Simply put, it is not that difficult to become something more than a biologically uninformed science idiot.@jk
Those who would rather not continue to display their overwhelming ignorance need simply only start to learn about what is currently known@jk
The epigenetic mechanism obviously applies to all cell type differentiation. There's a model for that: http://www.ncbi.n...24693353@jk
You continue to misuse the term "cell type differentiation", too. That refers to how all the different cell types in your body come from the same stem cells.@ANON
think about the fact that the domain Pheromones.com has been a source of information about human pheromones since 1995@little jimmie k
JVK
Mar 10, 2015Amino acid substitutions link nutrient-dependent metabolic networks and genetic networks via fixation. Whether the cricket mandible and male penis are examined or the human fossil record, anyone who expected linear changes to occur was a fool.
Changes in morphology occur in the context of changes in behavior linked to the pheromone-controlled physiology of reproduction or animal species rapidly become extinct.
http://rspb.royal...abstract
See also RNA-mediated.com