2,457 results
2,457 results for: mutations
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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.
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Devil’s Lapdog Gets Its Due: The lab rat bares its DNA to biologists
Scientists announced that they have deciphered the full DNA sequence of the standard lab rat, setting the stage for a new flurry of biomedical research on this rodent and providing insight into mammalian evolution.
- Anthropology
Gene implicated in apes’ brain growth
A gene with poorly understood functions began to accumulate favorable mutations around 8 million years ago and probably contributed to brain expansion in ancient apes.
- Health & Medicine
Categorizing Cancers: Gene activity predicts leukemia outcome
By dividing acute myeloid leukemia into subtypes on the basis of which genes are abnormally active in a given patient, doctors may be able to predict outcomes and make better treatment decisions.
- Humans
Mouse Mourned: Yoda dies at age 4
An age-defying laboratory mouse known as Yoda died peacefully in his cage in Ann Arbor, Mich., on April 22, at the age of 4 years and 12 days.
- Health & Medicine
Cord Blood to the Rescue: Infusions help babies with Hurler’s syndrome
Umbilical cord blood transplants boost overall health and survival in patients with the rare hereditary condition called Hurler's syndrome.
