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Heterosis, hybrid vigor, or outbreeding enhancement is the improved or increased function of any biological quality in a hybrid offspring. An offspring is heterotic if its traits are enhanced as a result of mixing the genetic contributions of its parents.
The results show that haplogroup D introgressed 37,000 years ago (based on the coalescence age of derived D alleles) into modern humans from an archaic human population that separated 1.1 million years ago (based on the separation time between D and non-D alleles), consistent with the period when Neanderthals and modern humans co-existed and ...
Overdominance is a phenomenon in genetics where the phenotype of the heterozygote lies outside the phenotypical range of both homozygous parents. Overdominance can also be described as heterozygote advantage regulated by a single genomic locus, wherein heterozygous individuals have a higher fitness than homozygous individuals.
Heterosis is the tendency for hybrid individuals to exceed their purebred parents in size and vigor. The phenomenon has long been known in animals and plants. Heterosis appears to be largely due to genetic complementation, that is the masking of deleterious recessive alleles in hybrid individuals.
Heterosis, or hybrid vigor, associated with historical reductions of the levels of inbreeding, has been proposed by Michael Mingroni as an alternative explanation of the Flynn effect. [ 56 ] [ 57 ] However, James Flynn has pointed out that even if everyone mated with a sibling in 1900, subsequent increases in heterosis would not be a sufficient ...
Image credits: Michael Buckner / Getty #3 Scott Disick. Boxes of Mounjaro, which is known for its weight loss effects, were found stacked in Scott Disick’s fridge on a past episode of The ...
On President Donald J. Trump’s first day in office, he issued an executive order designating human and drug trafficking cartels as Foreign Terrorist Organizations (FTOs). This week, the other ...
Teddi Mellencamp is on the road to recovery.. The Real Housewives of Beverly Hills alum recently revealed that the symptoms that brought her to seek medical attention were actually signs of ...