When yeast cells face environmental stress, such as exposure to hydrogen peroxide, their internal operations can begin to malfunction. For example, a particular protein misfolds and no longer functions as well. This hardly seems surprising, but as usual there is more to the story. It seems that the misfolded protein normally helps to terminate the synthesis of new proteins. But when it is misfolded, some of the newly formed proteins end up a bit longer, with more information added. And the added information is not just random garbage–it helps the cells adjust to the environmental stress which brought about the change in the first place. Read more
One Reply to “A “Malfunction” That Helps: Induced Adaptation in Yeast Cells”
Dr. Hunter, thanks for clearly elucidating a major failure of evolutionary theory:
In response to evolutionists who have said, and will say, that evolution does not predict random variation to be independent of need:
Dr. Hunter is completely right in that evolution’s primary prediction is that evolution predicts and expects the main driving force for evolution, to “new” environments, to be totally random variations which are completely independent of any organisms need at any given time. Indeed this is the cornerstone upon which all evolutionary thought is built since it is the polar opposite of the teleology that Theism expects. To find that an organism exhibiting highly organized “pre-programmed” responses to any environmental cues is expected for the limited variation within kind model of Theism, and is totally unexpected, indeed crushing, for the atheistic/materialistic model of Neo-Darwinian evolution. What’s more the Theistic model of Genetic Entropy will maintain that the parent yeast will always be more fit for survival once the environmental stress is removed.
Scientists Discover What Makes The Same Type Of Cells Different – Oct. 2009
Excerpt: Until now, cell variability was simply called “noise”, implying statistical random distribution. However, the results of the study now show that the different reactions are not random, but that certain causes (environmental clues) lead to predictable distribution patterns,,,
Bacteria ‘Invest’ (Designed) Wisely to Survive Uncertain Times, Scientists Report – Dec. 2009
Excerpt: Essentially, variability of bacterial cells appears to match the variability in the environment, thereby increasing the chances of bacterial survival,
De Novo Genes: – Cornelius Hunter – Nov. 2009
Excerpt: Cells have remarkable adaptation capabilities. They can precisely adjust which segments of the genome are copied for use in the cell. They can edit and regulate those DNA copies according to their needs. And they can even modify the DNA itself, such as with adaptive mutations,,,,One apparent de novo gene is T-urf13 which was found in certain varieties of corn.