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Tag: "emergence" at biology news

Some caterpillers just don't want to grow up

...t added benefits achieved by slow-developers after emergence would also tip the balance in favor of slow development. It is now a matter of further field and lab work to demonstrate that such benefits exist. ...

RNA enzyme structure offers a glimpse into the origins of life

...s of years ago on the evolutionary path toward the emergence of life. In all forms of life known today, the synthesis of DNA and RNA molecules is carried out by enzymes made of proteins. The instructions for making those proteins are contained in genes made of DNA or RNA (nucleic acids). The circularity of th...

Antifungal drug kills TB bug

...nd problems with patient compliance has led to the emergence of drug-resistant strains of the disease. "There were only ever a limited number of drugs that were effective against TB anyway," said Professor Munro, who is based in the University’s £38 million Manchester Interdisciplinary Biocentre. "People...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...230 to 250 million years ago, rather than with the emergence of modern living birds just 110 million years ago. Organ and Edwards suggest after this shrinking, theropod genomes then stabilized in size for hundreds of millions of years, a process that continues in modern birds. "Our work debunks the theory t...

Changes in amino acids in the 1918 influenza virus cut transmission

...every 10 to 40 years, the factors that lead to the emergence of pandemic viruses are not well understood, explains study co-author Adolfo García-Sastre, PhD, Professor of Microbiology at Mount Sinai School of Medicine. "What's most threatening is the possibility of another pandemic, similar to that of 1918, wh...

Study suggests some drug resistance to influenza B medications

...nsively. There has been documented evidence of the emergence of oseltamivir-resistant type A viruses, but simil...mutant viruses. “Continued surveillance for the emergence or spread of neuraminidase inhibitor–resistant influenza viruses is critically important,?the author...

It's never too late to get it back! Aging interrupted

...associated with ageing include cell damage and the emergence of cancer cells. The most important effects of low calorie diets and longevity therapeutics given late in life may not be to prevent this damage, but instead to stimulate the body to eliminate damaged cells that may become cancerous, and to stimulat...

MIT's ocean model captures diversity of underwater forests

...attributes this new approach to three factors: the emergence of new information about the genetic diversity of marine microbes, recent advances in computational capability and a simple recognition of his own bias. "Physicists, like myself, have a bit of a reductionist view. We often shy away from the comple...

Gene mutation linked to cognition is found only in humans

...orld monkey. This pattern suggests that before the emergence of the type II splice form in human, the weakening...plicing forms in the central nervous system in the emergence of human cognition."...

Peramivir protects mice from lethal H5N1 infection

...ring a pandemic, and we are currently studying the emergence of H5N1 variants that are resistant to this drug and may occur in the course of treatment," said Natalia A. Ilyushina, Ph.D., a postdoctoral fellow in Webster’s laboratory. Ilyushina is a co-author of the paper. ...

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