Sentences with phrase «variation than a gene»

Because of its rapid rise, the gene becomes fixed in the genome with less variation than a gene that spread more slowly and was subject to the shuffling effects of recombination.

Not exact matches

Based on the core principles of behavioral genetics, if genetics explain variations in distrust and trust behaviors, then identical twins should behave more similarly to each other than fraternal twins, since the genes of identical twins are shared, while the genes of fraternal twins are only imperfectly correlated, Reimann said.

More to the point, your health, your life span — and even some of your actions — may have more to do with the genetic variation in those microorganisms you host than they do with your own genes.

In all, the study included the data of more than 23,000 people to show that approximately 12 percent of a person's variation in delay discounting can be attributed to genetics — not a single gene, but numerous genetic variants that also influence several other psychiatric and behavioral traits.

They discovered that genetic variation influencing a person's risk for multiple sclerosis, rheumatoid arthritis, and type 1diabetes is more likely to control gene activity in T cells than in monocytes.

«All three predictions were met: facial traits are more variable and less correlated than other traits, and the genes that underlie them show higher levels of variation,» Nachman said.

The scientists estimate that these gene variations were able to persist in Neanderthals because Neanderthals had a much smaller population size than humans.

Researchers report that one tiny variation in the sequence of a gene may cause some people to be more impaired by traumatic brain injury (TBI) than others with comparable wounds.

By studying rare «copy number variations,» which are individual errant insertions or deletions of DNA segments (each of which occur in less than one percent of the population), researchers discovered a new cluster of genes that are affected in some autistic individuals as well as a number of mutations that were present in autistic children but not their parents.

Although bacteria have a seemingly limitless capacity to alter their genes by swapping bits of DNA between strains, this mechanism doesn't seem enough to account for the swift pace of change and the high variability of E. coli and other strains.Thomas Cebula of the U.S. Food and Drug Administration (FDA) wondered if this rapid evolution is being driven by microbes capable of much faster - than - normal variation.

Analysing variations in folk tales using genetic techniques shows that people swap genes more readily than stories, giving clues to how cultures evolve

Patients with a particular inherited variation in the gene IFITM3 were more than twice as likely to develop severe, life - threatening flu symptoms as those who carried the protective version of the gene.

So when Drake and his colleagues measured the RNA levels — a direct link to how much of a gene is being produced — in the genes of 334 mice, he didn't expect to find more than a few variations that might help explain why males and females have such different rates of cardiovascular disease and diabetes or why they react differently to certain drugs.

When the team looked at the chromosomes of more than 1000 people from populations around the world, they concluded that the prevalence of two of these variations was due to an evolutionary balancing act that had kept them in the gene pool for as long as 500,000 years.

They showed how variations in breast cancer cells» RNA, the molecule that decodes genes and produces proteins, helps the cancer to evolve more quickly than previously thought.

The new work, published October 20 in PNAS, shows how variations in breast cancer cells» RNA, the molecule that decodes genes and produces proteins, helps the cancer to evolve more quickly than previously thought.

They found that individuals with the variation on the RASGRF - 2 gene drank more frequently at the age of 16 than those with no variation on the gene.

With 20 contingency genes, a bacterium would have a repertoire of more than a million possible variations.

As an example, skeletal malformations and dysplasias, often detected through routine prenatal ultrasound examination, constitute a phenotypic finding in more than 300 syndromic and non-syndromic disorders and their genetic etiology may be due to a wide variety of genetic aberrations, ranging from copy number variations to single gene mutations.

A variation of the gene - editing technique can more precisely and efficiently downregulate the expression of target genes than traditional CRISPR / Cas9.

By utilizing paired genome - wide high - throughput DNA sequencing (DNA - seq) with RNA - seq, we found that gene dosage, at the level of individual genes or chromosomal «somy» (a general term covering disomy, trisomy, tetrasomy, etc.), accounted for greater than 85 % of total gene expression variation in genes with a 2-fold or greater change in expression.

The researchers also determined that rare inherited gene variations — those found in less than 5 % of people — contribute another 3 % of autism population risk.

We find that Polycomb repressive complex - active genes have greater cell - to - cell variation in expression than active genes, and these results are validated by knockout experiments.

Variations in a particular gene may help explain why some people appear more youthful than others, researchers say.

However, the good news is that according to the 2011 study even moderate physical activity such as walking is able to reduce the negative influence of this obesity - related gene variation by more than 25 %!

However, if «feeling worse» lasts more than few days, this could be due to overmethylation, other gene variations, or a sensitivity to the supplements; and the supplements should be discontinued.

The increased power provided by looking for specific gene candidate variations rather than linked markers will aid the identification of epilepsy risk factors, perhaps leading to development of DNA tests to enable breeders to select against such risk factors.

Related to this question, recent research suggests that particular polymorphisms, often those linked to risk for pathology, make the individual more susceptible to be influenced by parenting and other experiences.24 - 26 For example, children carrying the 7 - repeat variation of the DRD4 appear to benefit more from interventions directed to prevent behaviour problems than those carrying other variations of the gene.24 Nonetheless, further research is needed on how and to what extent EC skills may be influenced by the interplay between constitution and experience.