2,414 results
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Enzymes Exposed
Clearer views of the cell’s movers and shakers threaten a century-old mainstay of biology.
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Letters
Don’t dismiss Lamarck Your January 31 special birthday edition on Darwin (SN: 1/31/09, p. 17) was excellent, but I believe that science has allowed Jean-Baptiste Lamarck’s contributions to be overshadowed by Darwin’s. The change that can occur to an organism’s genetic makeup during its own lifetime harks away from Darwin’s slow evolutionary process by chance […]
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Rare mutations tied to schizophrenia
Individual-specific DNA deletions and duplications, many located in genes involved in brain development, occur in an unusually large percentage of people with schizophrenia.
- Health & Medicine
Sequencing virus genome to cure the common cold
The genomes of all known common cold viruses have been sequenced, providing new information on how the different strains are related, how they replicate and how to predict their virulence.
- Life
Duplication in genomes may separate humans from apes
A sudden peak in duplication of chunks of DNA in the common ancestor of humans, chimps and gorillas led to genetic flexibility, which created differences among the species.
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- Life
A better understanding of inherited breast cancer
New studies on a type of inherited breast cancer identify a key factor with different roles in different cancers.
- Health & Medicine
Early intellectual gap found for kids of older fathers
A reanalysis of data from more than 33,000 U.S. children finds that those with older fathers fared somewhat poorer on intelligence tests than those with younger fathers, regardless of mothers’ ages.
- Chemistry
Flowerless plants make fancy amber
A new analysis suggests that ancient seed plants made a version of the fossilized resin credited to more modern relatives
- Health & Medicine
Genome 10K: A new ark
Featured blog: Researchers are working to catalog the DNA sequences of just about every vertebrate genus.
- Health & Medicine
New embryonic stem cells ratted out
Overcoming obstacles, scientists have created stable embryonic stem cells from rats. Researchers hope their method will prove useful as a general recipe for isolating stem cells from other mammals.
