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A hitchhiker mutation (or passenger mutation in cancer biology) may itself be neutral, advantageous, or deleterious. [ 7 ] Recombination can interrupt the process of genetic hitchhiking, ending it before the hitchhiking neutral or deleterious allele becomes fixed or goes extinct. [ 6 ]
A typical hitchhiker's gesture. Hitchhikers use a variety of signals to indicate they need a ride. Indicators can be physical gestures or displays including written signs. [1] The physical gestures, e.g., hand signals, hitchhikers use differ around the world: In some African countries, the hitchhiker's hand is held with the palm facing upwards. [2]
A 1976 edition of the journal Ekistics used the phrase in the context of bureaucratic inaction on low-income housing, describing "the principle of somebody else's problem" as something that prevented progress.
A typical hitchhiker's thumb gesture A thumb up on Facebook, meaning "like" More recently, these gestures are associated with film reviews , having been popularized by critics Gene Siskel and Roger Ebert [ 19 ] on their televised review show Siskel & Ebert ; the thumb up meaning a positive opinion of a film; the thumb down meaning a negative one.
Is 'The Hatchet Wielding Hitchhiker' based on a true story? Yes! McGillvary (a.k.a. Kai) is a very real person, and the story the documentary tells is factual.
Cultural hitchhiking is a hypothesized gene-culture coevolutionary process through which cultural selection, sexual selection based on cultural preference, limits the diversity at genetically neutral loci being transmitted in parallel to selective cultural traits.
The diversity is defined as the total number of differences in all pairwise comparison between haplotypes. The difference between a pair of haplotypes is the sum of differences over all the SNPs. The Clayton's diversity measure can be used to define how well a set of tag SNPs differentiate different haplotypes.
Hitchhiker's thumb, also known as distal hyperextensibility of the thumb, is the condition of having a thumb that has a distal phalange that bends backwards in an angle of 90°. This condition is benign (when isolated) and does not cause pain or affect the thumb with the trait negatively.