Another powerful technique to analyze DNA mutations
, developed by Sequenom, is based on matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (20, 21), a technique that discriminates between DNA fragments by differences in molecular weight.
The organization utilizes its own patented morphogenics process to expedite DNA mutations
that can be developed for drugs, agriculture and other life sciences or industrial applications.
The genome-wide comparison, carried out by evolutionary biologists at the University of California, Berkeley, uncovered more than 30 genes with DNA mutations
that have become more prevalent in Tibetans than Han Chinese, nearly half of which are related to how the body uses oxygen.
This increased acid content may directly injure DNA or may impair the enzymes used to correct DNA mutations
, says Glazer.
Radiation causes DNA mutations
during the process of cell division, when genetic material is copied for a new cell to form.
Next, the team produced plants with defective clocks by soaking seeds from the genetically engineered weed in a chemical that causes DNA mutations
But, when the level of antibiotic is less than lethal the same reaction causes DNA mutations
that are not only survivable, but actually protect the bacteria from numerous antibiotics beyond the one it was exposed to.
As people age, mitochondrial energy production naturally declines, the result of accumulated DNA mutations
The same man displayed a pattern of mitochondrial DNA mutations
, inherited from maternal ancestors, characteristic of speakers of modern Indo-European languages in central Asia.
If DNA mutations
caused by excessive sunbathing can promote skin cancer in humans, how do plants manage to get away without harm?
The researchers conducted experiments involving drugs known to affect neuronal activity in combination with DNA mutations
in genetic factors shared between C.
He wonders whether immobile or feeble sperm -- which normally don't stand much chance of penetrating the egg's inner sanctum -- might be more likely to harbor serious DNA mutations
than their more vigorous counterparts.