2,463 results
2,463 results for: mutations
-
19458
This article may have missed a “magic bullet” that would be effective against many forms of cancer. The researchers concentrate on a drug that blocks a mutated form of the epidermal growth factor (EGF) receptor, which may benefit 5 percent of lung cancer patients. Yet the article states that “if normal cell growth runs amok, […]
- Genetics
Scorpion’s sting evolved from insects’ defensive proteins
With a single genetic mutation, an insect’s defensive proteins can be transformed into a toxin that gives scorpions their signature sting, a new study shows.
- Health & Medicine
H7N9 flu makes a comeback
Scientists warn that the risk that the illness could spread remains.
- Genetics
Origin of Tibetans’ high-altitude adaptations found
Mixing genes of two ancestral populations gave modern Tibetans their ability to withstand high altitude.
- Genetics
What your earwax says about your ancestry
Both armpit and ear wax secretions are smellier in Caucasians than in Asians, thanks to a tiny genetic change that differs across ethnic groups.
- Anthropology
Gene change hints at brain evolution
A genetic mutation found only in humans first appeared around 2.8 million years ago, perhaps setting the stage for brain enlargement in the Homo lineage.
- Health & Medicine
Immune gene linked to prostate cancer
An immune-cell gene plays a role in predisposing men to prostate cancer.
-
Long live the Y?
Researchers have identified a means by which the Y chromosome may forestall, or at least delay, the gradual degradation that some biologists argue will ultimately delete it from the human genome.
- Health & Medicine
Gene may keep breast cancer at bay
Scientists have identified a gene that seems to protect against some common breast cancers.
-
A fish’s solution to broken hearts
The zebrafish can regenerate missing heart muscle.
-
Losing Rhythm: Gene mutation causes heart problems
Chinese researchers have for the first time identified a genetic defect that causes atrial fibrillation, a disorder in which the heart's upper chambers beat irregularly and too rapidly.
- Animals
Retaking Flight: Some insects that didn’t use it didn’t lose it
Stick insects may have done what biologists once thought was impossible: lose something as complicated as a wing in the course of evolution but recover it millions of years later.
