2,457 results
2,457 results for: mutations
- Health & Medicine
Hot clock key to fruit fly’s global spread
A temperature-sensitive switch in a fruit fly’s biological clock means some species can survive in a wide range of climates while others are stuck on the equator.
- 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.
- Life
For worms, one gene can change survival behavior
Natural differences in a single gene cause worms to either eat or avoid harmful bacteria.
- Genetics
Dog gene heeds call of the wild
Domesticated dogs passed a gene for dark fur color to their wild cousins.
- Ecosystems
Flowering plants welcome other life
When angiosperms diversified 100 million years ago, they opened new niches for ants, plants and frogs.
- 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.
- 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.
- Health & Medicine
Possible genetic flag for brain cancer
Mutations in IDH genes show up in many brain cancers, but the genes’ role remains unclear.
- Agriculture
Gut bacteria ally with Bt
A new study finds that a particular microbe makes caterpillars susceptible to the insecticide.
- 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.
- Humans
Science’s next generation wins accolades
Star students receive more than $530,000 in scholarships and prizes in the Intel Science Talent Search.
- Health & Medicine
How herpes re-rears its ugly head
Researchers identify a key player in the reactivation of herpes simplex virus type 1.
