Search results
Results From The WOW.Com Content Network
Brachycephaly (derived from the Ancient Greek βραχύς, 'short' and κεφαλή, 'head') is the shape of a skull shorter than average in its species.It is perceived as a cosmetically desirable trait in some domesticated dog and cat breeds, notably the pug and Persian, and can be normal or abnormal in other animal species.
The process of selective breeding, in which organisms with desired traits (and thus with the desired genes) are used to breed the next generation and organisms lacking the trait are not bred, is a precursor to the modern concept of genetic modification [20]: 1 Various advancements in genetics allowed humans to directly alter the DNA and ...
The English bulldog, a typically brachycephalic dog breed, may have brachycephalic syndrome. A Peke-face Exotic shorthair.. Brachycephalic obstructive airway syndrome (BOAS), also known as brachycephalic airway obstructive syndrome (BAOS), brachycephalic airway syndrome (BAS), and brachycephalic syndrome (BS), [1] is a pathological condition affecting short nosed dogs and cats which can lead ...
Jewish populations, and particularly the large Ashkenazi Jewish population, are ideal for such research studies, because they exhibit a high degree of endogamy, and at the same time are a large group. Jewish populations are overwhelmingly urban and are concentrated near biomedical centers where such research has been carried out.
Opponents claimed that "incorporating stringent socio-economic standards into the science-based regulatory system could spell the end of private research funding; because if private biotechnology companies can't see the possibility of a return on their investment, they'll invest their research budget elsewhere". [435]
Cancer selection can be viewed through the lens of natural selection.The animal host's body is the environment which applies the selective pressures upon cancer cells. The most fit cancer cells will have traits that will allow them to out compete other cancer cells which they are related to, but are genetically different
Examples of environmentally induced transgenerational epigenetic inheritance in plants has also been reported. In one case, rice plants that were exposed to drought-simulation treatments displayed increased tolerance to drought after 11 generations of exposure and propagation by single-seed descent as compared to non-drought treated plants.
The effective population size (N e) is the size of an idealised population that would experience the same rate of genetic drift as the real population. [1] Idealised populations are those following simple one-locus models that comply with assumptions of the neutral theory of molecular evolution.