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ginger Prince Harry
Red hair (ginger, UK) is an autosomal recessive phenotype inherited when both patents have specific codon changes on MC1R, the melanocortin 1 receptor gene (aka melanocyte-stimulating hormone receptor–MSHR). A ginger child can be born to non-gingerparents–i.e., don’t shoot the milkman or builder without a paternity test.
The increase of red hair in northern Europe relative to Africa, where there is natural selection against light-coloured skin, has been attributed to a lack of negative selection, to genetic drift and possibly sexual selection.
Data suggest that gingers differ from non-gingers in sensitivity to pain and anaesthetics, which has been attributed to molecular cross-talk between melanin-stimulating hormone–MSH and pro-opiomelanocortin–POMC and their respective receptors.
As an aside, the wikipedia entry on red heads is worth a read.
A slang term for a prostitute who regularly robs clients.
adjective Referring to red hair or a person with same
noun A person with orange-red hair colour or the hair itself, which is seen in 1-2% of the entire human population, 2-6% in Europeans, and 13% of Scots.