2,462 results
2,462 results for: mutations
- Health & Medicine
HIV may date back to the 1930s
Genetic analysis of the AIDS virus suggests it first infected humans in the first third of the 20th century.
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The Body Electric
An electric field inside an embryo may tell it whether to place an internal organ on its left or right side.
- Science & Society
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
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Debate over Alzheimer’s enzyme flares up
Scientists continue to tussle over the identity of an enzyme implicated in Alzheimer's disease.
- Health & Medicine
Lack of nutrient turns flu nasty
A dietary deficiency in selenium, an essential trace mineral, may cause a usually harmless strain of the flu to mutate into a virulent pathogen.
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Placental Puzzle
Do captured viral genes make human pregnancies possible?
- Humans
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
- Plants
Sunflower genes don’t fit pattern
Comparison between crop and wild sunflower genes suggests that the plant followed an easy route to domestication.
- Health & Medicine
Rwandan patients show unusual HIV
Blood tests on people in Rwanda who have had HIV infections for years without symptoms of AIDS indicate that the viruses in these patients have rare mutations.
- Health & Medicine
Cancer clue: RNA-destroying enzyme may thwart prostate-tumor growth
Scientists have found a mutated gene that predisposes men of some families to prostate cancer.
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Ancient Gene Takes Grooming in Hand
A gene involved in body development also plays a critical role in regulating the grooming behavior of mice, a discovery that may advance the understanding of certain psychiatric disorders.
- Health & Medicine
‘Bubble’ babies thrive on gene therapy
Gene therapy to repair mutations that thwart development of essential immune cells has helped three babies to overcome severe combined immunodeficiency, in which a child is born without a functional immune system.
