2,447 results
2,447 results for: mutations
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Sound Off
By using bits of RNA to eliminate the effects of selected genes, scientists are developing new ways to study gene function and treat diseases.
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Two-handed protein may protect DNA
An unusually shaped protein may help a bacterium thrive in tough times.
- Archaeology
Rat DNA points to Pacific migrations
An analysis of mitochondrial DNA from Pacific rats supports a theory that ancestors of today's Polynesians migrated from Southeast Asia to a string of South Pacific islands in at least two separate dispersals.
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Cancer Flip-Flop: Gene acts in both proliferation and control of growth
Scientists have identified what might be a new class of cancer-controlling genes that alternates between halting and promoting cancer.
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Teams implicate new gene in prostate cancer
A newly discovered gene may, in rare cases, cause prostate cancer or, more commonly, raise a man's risk of developing the disease.
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Human genes take evolutionary turns
Researchers have identified a set of genes that has evolved an extensive pattern of alterations unique to people.
- 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
In the Neandertal Mind
Neandertals possessed much the same mental capacity as ancient people did, but a genetically inspired memory boost toward the end of the Stone Age may have allowed Homo sapiens to prosper while Neandertals died out.
- Health & Medicine
Figuring Out Fibroids
Researchers now have a better understanding of which women develop fibroids and what causes them.
- Health & Medicine
Assault on Autism
A shift in scientific thinking about what causes autism is prompting a closer look at potential environmental factors.
- Humans
Science News of the Year 2005
A review of important scientific achievements reported in Science News during the year 2005.
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Learning to Listen
Disparate groups of creatures, including bats, toothed whales, and birds, have evolved biological sonar that they use to track prey, but other creatures have evolved ways to detect this sonar and thereby increase their odds of survival.
