allele : Definition, Usages, News and More
- n (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character
some alleles are dominant over others
- Those men, it turns out, had a particular gene variant, or allele, that reduces the density of receptors for dopamine a neurotransmitter that plays a key role in motivation .
- It is the first to link low activity on the MAO-A allele in young men both to an increased likelihood of joining a gang and to a greater tendency to use weapons and violence.
- What Caspi's 2003 epidemiological study, published in Science, found was that people with one or two copies of the short allele of the gene appeared to be more vulnerable to .
News & Articles
- Fate of new genes cannot be predicted
New versions of genes, called alleles, can appear by mutation in populations. Even when these new alleles turn the individuals carrying them more fit to survive and reproduce, the most likely outcome is that they will get lost from the populations. The theory on this topic is 90 years old and has become the cornerstone of modern population genetics, with studies on adaptation to novel ...
Sept. 13, 2013 - Science Daily
- No Broccoli For Us, Thanks
If broccoli makes you go 'blech!' the levels of mRNA expressed from your TAS2R38 bitter taste receptor gene may help explain why. Researchers from the Monell Chemical Senses Center and New York University report in the American Journal of Clinical Nutrition that the expression levels of the two alleles of the TAS2R38 taste receptor gene are associated with being able to taste bitterness and ...
Sept. 13, 2013 - GenomeWeb News
- Bruce Lahn in Independent Online
By no means do these findings constitute definitive proof that a Neanderthal was the source of the original copy of the D allele. However, our evidence shows that it is one of the best candidates,Lahn said.
- Dean Hamer in Slate
Hamer calls this gene "the spiritual allele" or, even more dramatically, the "God gene"-which is also the title of the popular book in which he describes his research.