2,448 results
2,448 results for: mutations
- Animals
Wild innovation
Researchers have published a rare description of a wild chimpanzee devising and modifying a novel form of tool use.
- Health & Medicine
Down syndrome’s anti-tumor effect
The chromosomal abnormality that causes Down syndrome might protect against some solid tumors.
- Health & Medicine
Anti-inflammatory prevents pancreatic cancer in mice
An anti-inflammatory drug of the COX-2 inhibitor family blocks precancerous lesions in mice prone to pancreatic cancer.
- Health & Medicine
Early Arrival: HIV came from Haiti to United States
New analysis of 25-year-old blood samples indicates that HIV reached the United States in about 1969, 12 years before AIDS was first formally described.
- Health & Medicine
Take a Breath: Fatty substance may play role in cystic fibrosis
A fatty compound called ceramide that accumulates in lung cells may be instrumental in the devastating disease cystic fibrosis.
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Breast Cancer Lead: Overactive gene is linked to disease
A mutated gene that's overly active in breast cancer cells could offer a new target for cancer drugs.
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New player in cancer risk
RNA snippets of a newly discovered type could be involved in the mechanisms of cancer.
- Computing
Squashing Worms
Defeating computer worms that mutate will take some smart defense strategies.
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Micromanagers
Some scientists believe the human brain is the creation of RNA. Only noncoding RNAs are plentiful, and powerful enough to handle the billions of complex interactions the brain faces every day.
- Microbes
Team spirit
Working together, bacteria and other microbes can accomplish much more than they can alone. Now scientists hope to harness that ability by engineering their own microbial consortia.
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Genome 2.0
Detailed explorations of the human genome are showing that individual genes may have complex structures, and that much of what had been called junk DNA is not junk at all.
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19870
This article reviews efforts to explain why certain biological molecules tend to be all right-handed (e.g., sugars) or left-handed (e.g., amino acids). An explanation might lie in the evolution of enzymes involved in their synthesis. For example, the fact that some organisms produce predominantly d-alanine could be explained by random mutations for the opposite enzyme […]
