Word: variants
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...Beaver's study shows, not all carriers of the defective MAO-A gene join a gang, and not all gang members have the defect. It remains largely unknown how common the low-active gene variant is in the general population, though one 2002 study indicated that genetic factors, including MAO-A, account for as much as 50% of the population variance in risk for antisocial behaviors. Additionally, Beaver's and other studies have found that low levels of the MAO-A enzyme affect only men, despite the fact that the MAO-A gene is located on the X chromosome...
...scientists focused on the more than 1,000 genetic samples of families in which at least one son was affected by the disorder, prompted by the results of an earlier study using the same database, which identified a rich autism-related genetic region on chromosome 17 that contained genetic variants more common in boys than in girls. While nearly 40% of the general population has the most common form of CACNA1G, one variant of the gene was more prevalent in autistic boys, researchers found. "There is a strong genetic signal in this region," says Dr. Daniel Geschwind, director of UCLA...
...strong buzz of feedback stifles his melodies, would be to acknowledge his accomplishments rather than to deplore his defects. Coming from indie rocker Nathan Williams, whose music is variously categorized as crust pop, noise punk or even “shitgaze”—a descriptive variant of “shoegaze”—it is not surprising that his second album is every bit as defiantly clamorous as the first. While similarly marked by drilling drumbeats and tense clashes of chords, “Wavvves” takes more risks with electric frequencies...
...findings released in early January - which showed that changing the scale would slightly boost GPAs but was inconclusive about whether it would help students get into better colleges - the school board on Jan. 22 agreed to start using a higher premium for tough courses and to adopt a new variant of a 10-point grading scale...
...think J.K. Rowling knows how to be less than charming in print - but they do vary in quality. The first tale, "The Wizard and the Hopping Pot," is the worst, a grimly heartwarming trifle about how you should be nice to Muggles. "Babbitty Rabbitty and Her Cackling Stump," a variant on the emperor's new clothes, isn't much more successful, though it was a relief to me to learn that the stump in question is a tree stump and not some kind of chortling severed limb...