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Inbreeding is also used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.
The coefficient of inbreeding (COI) is a number measuring how inbred an individual is. Specifically, it is the probability that two alleles at any locus in an individual are identical by descent from a common ancestor of the two parents.
A hybrid between two inbred strains can be used to cancel out deleterious recessive genes resulting in an increase in the mentioned areas. This is known as heterosis. [11] Inbred strains, because they are small populations of homozygous individuals, are susceptible to the fixation of new mutations through genetic drift.
In both humans and animals, it can be the result of inbreeding. [10] Unlike alveolar or maxillary prognathism, which are common traits in some populations, mandibular prognathism is typically pathological. However, it is more common among East Asian populations but overall, the condition is polygenic. [11]
Inbreeding depression has also been found to occur more gradually than predicted in some wild populations, such as in the highly inbred population of Scandinavian wolves. This appears to be due to a selection pressure for more heterozygous individuals, which generally are in better condition and so are more likely to become one of the few ...
A study on people who had heart attacks found that those with lower cortisol levels were more likely to develop PTSD. (Cortisol is known as “the stress hormone.”) (Cortisol is known as “the ...
Recession fears for 2025 are fading fast, with market models and economist forecasts signaling a slim chance of economic contraction. But with optimism running high, could markets be misreading ...
WASHINGTON ― President-elect Donald Trump on Tuesday repeatedly declined to rule out involving the U.S. military to carry out his ambitions for the U.S. to acquire Greenland and the Panama Canal ...