2,442 results
2,442 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
Meat Poses Exaggerated Cancer Risk for Some People
Animal research probes why a genetic vulnerability renders some individuals especially susceptible to the colon carcinogens that can form in cooked meats.
- Health & Medicine
The Screen Team
New and experimental methods of screening for colorectal cancer that patients find less unpleasant than current tests could take a bite out of the malignancy's toll.
- Health & Medicine
Better Beta: Cells grown in lab may treat diabetes
Scientists have developed a technique to mass-produce a type of pancreas cell needed for transplants into people with type 1 diabetes.
- Humans
Letters from the May 21, 2005, issue of Science News
Rascal rabbits Evidence of animals sensing where people are looking and what they’re seeing is interesting yet hardly new (“Monkey See, Monkey Think: Grape thefts instigate debate on primate’s mind,” SN: 3/12/05, p. 163). For years, I have observed that wild rabbits will remain motionless as long as I stare in their direction. But as […]
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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
Flora Horror
A diarrhea-causing bacterium has developed new resistance to a widely used class of antibiotics and has recently become more transmissible and more deadly.
- Health & Medicine
Mutation linked to sinus infections
People who have frequent sinus infections are more likely on average to carry one copy of the same genetic mutation that causes cystic fibrosis, even though they don't have that disease.
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Nurture Takes the Spotlight
What a person eats, what chemicals he or she is exposed to, and other features of a person's environment chemically modify chromosomes, thereby changing how genes are ultimately expressed.
- Health & Medicine
Motor Ways: Gene mutation impairs muscle coordination
Scientists have identified a gene mutation that appears to cause the motor impairment that occurs in a rare disorder called Joubert syndrome.
- Humans
Science News of the Year 2006
A review of important scientific achievements reported in Science News during the year 2006.
- Anthropology
Coasting to Asia in the Stone Age
New genetic analyses of people from native island groups in Southeast Asia support the unconventional view that around 70,000 years ago, people living in Africa crossed the Red Sea and moved east along Asia's southern coast.
