2,470 results
2,470 results for: mutations
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Kibble for Thought: Dog diversity prompts new evolution theory
A genetic mutation that researchers have examined in several dog breeds may drive evolution in many other species.
- Health & Medicine
Expanding the therapeutic arsenal
Two experimental drugs can send chronic myeloid leukemia into remission in patients who don't benefit from the best currently available drugs.
- Math
When Laziness Pays: Math explains how cooperation and cheating evolve
Researchers have developed a mathematical model that helps explain how cooperation and cheating evolve among simple organisms.
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Getting to gray hair’s roots
Scientists have unveiled a root cause for why hair goes gray.
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Infectious Evolution: Ancient virus hit apes, not our ancestors, in the genes
A potentially deadly infection wormed its way into the DNA of ancestral chimpanzees and gorillas between 4 million and 3 million years ago, thus altering the evolution of these African apes while keeping clear of human ancestors on that same continent.
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Plants fix genes using copies from ancestors
Some plants can reinstate genes missing from their own chromosomes but that had been carried by previous generations.
- Health & Medicine
Blood hints at autism’s source
A new biochemical profile in blood may lead to earlier diagnosis of autism and a better understanding of its genetic causes.
- Health & Medicine
Drug Racing: Gene tied to HIV-drug response
A genetic mutation more common in blacks than in whites increases the odds that people taking a common HIV medicine will suffer side effects that lead them to halt treatment.
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Sunny Solution: Lotion speeds DNA repair, protects mice from skin cancer
Snippets of DNA that activate a cell's DNA repair process may protect mice from skin cancer caused by ultraviolet radiation.
- Anthropology
Prehistoric Family Split: DNA puts Neandertals on edge of human ancestry
The largest sample of ancient mitochondrial DNA extracted from Stone Age fossils to date indicates that Neandertals made, at most, a small genetic contribution to our direct prehistoric ancestors.
- Health & Medicine
Bug bites suggest new stroke drug
Changing a human enzyme so that it resembles one from blood-sucking insects may lead to a new treatment for strokes.
- Anthropology
Evolution’s Lost Bite: Gene change tied to ancestral brain gains
In a controversial new report, a research team proposes that an inactivating gene mutation unique to people emerged around 2.4 million years ago and, by decreasing the size of jaw muscles, set the stage for brain expansion in our direct ancestors.
