An evolutionary theory killer

Epigenetic inheritance of spatiotemporal regulation (5)

Thanks for the Stress, Dad As embryos, the researchers found that the mouse offspring, which exhibited more anxious behavior than usual, also had lower miRNA levels, as did the sperm of the male offspring upon maturity. The stress-linked degradation of messenger RNA is caused by virus-driven energy theft, which has been linked to all pathology in species from bacteria to humans.  For example: Neutrons identify critical details in bacterial enzyme implicated in gastric cancer Ronning’s team focused on H. pylori’s…

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Polymaths and paradigm shifts: from Asimov to Bear (4)

Saying Goodbye to the RNA World Theory RNA has a limited ability for catalysis compared to peptides, and would have struggled to maintain its catalytic activity under the changing temperature conditions of early Earth. Carter and Wills also argued that if an RNA world existed, it would have been unlikely for it to incorporate peptides later on. See for comparison: Dependence of RNA synthesis in isolated thymus nuclei on glycolysis, oxidative carbohydrate catabolism and a type of “oxidative phosphorylation” (1964)…

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