Blonde hair is almost certainly a sexually selected trait in women. 2020 election: Why Donald Trump isn't Al Gore, 51-year-old woman gives birth to her granddaughter, U.S. allows emergency use of COVID-19 antibody drug, Friendship between Biden and McConnell to be tested. As one would expect, scientists have found that particular alleles from different genes tend to group together in different populations. The American image of beauty: media representations of hair color for four decades. Called TYRP1, the gene is known to influence pigmentation in humans. Penguin. Is it bad that I only want to date people of my own race? How do we not know the genetic basis of skin and hair pigmentations across the globe?”. Some islanders theorize that the coloring could be a result of excess sun exposure, or a diet rich in fish. Journal of Social, Evolutionary and Cultural Psychology, Proceedings of the 2nd Annual Meeting of the NorthEastern Evolutionary Psychology Society. Dr. Bustamante and his colleagues published their findings in the current issue of the journal Science. (2) Nina, G, Jablonski, NG, Chaplin, G (2000) The evolution of human skin coloration.

Is there a biological/reproductive explanation? Why do albino Bangladeshis look like White people but not the regular brown ones? About 10 percent of indigenous people in the Solomon Islands have a gene variant for blond hair. They were conquered by europeans you know what happens when a bunch of horny soldiers see a native.

References(1) Mengel-From J et al (2009) Genetic determinants of hair and eye colours in the Scottish and Danish populations. Late Palaeolithic females in southern Europe and Africa could forage for food and feed themselves and their infants, with males occasionally supplementing their diet with meat. It can be a gene mutation or something like that.... u know it happens when you live near a pole your hair turns lighter.... it happened to europeans too. THe blonde hair caused by a resisive gene. All mtDNA haplogroups found outside of Africa are descendants of either haplogroup N or its sibling haplogroup M. M and N are the signature haplogroups that define the out of Africa migration and the subsequent spread to rest of the world. The researchers also found that the variant of TYRP1 that causes blond hair in Solomon Islanders is absent in Europeans’ genomes. Today there are plenty of theories about the evolution of blonde hair and the science of genetics has furthered the debate.

Northern Europe has fewer hours of sunlight compared with Africa, so the theory is that tribes migrating into Europe underwent a genetic mutation that resulted in the depigmentation of skin and hair.2. Another possible reason for Nordic gentlemen preferring blondes is to assure their paternity. “Here you go into an unstudied population with a small sample size and you can really find some cool things,” Dr. Bustamante said. Get your answers by asking now. ----------------------------------------------------------------------------------------------------------------------------------------------. Another explanation is that the blondness was inherited from distant ancestors — European traders and explorers who came to the islands. This would also help to explain the existence of blond males. NFL power rankings: Can Dolphins make the playoffs? Otherwise if they were full blooded Aboriginals they'd be darker. In addition, females don't select for physical appearance to the degree that men do. How do you know they don't have european blood? Sex Roles Journal. Behavioral Ecology and Sociobiology; 61(3): 371-384. From an anonymous maleDear Carole, I am attracted to women with blonde hair. Why do African Americans have a tendency to rewrite history and claim non-black things as black? Interestingly, Aboriginal tribes have evolved blonde hair in females independently of the Nordic blonde.3 As this has occurred in an environment not lacking UVB this suggests that sexual selection has been more important than the forces of natural selection. When the ice eventually receded, the survivors, who were in a haplogroup within the M or N macrohaplogroups, repopulated Asia and Europe. Evangelicals wonder what's next under Biden, Experts weigh in on Pfizer's COVID-19 vaccine. An enormous haplogroup spanning many continents, the macro-haplogroup N, like its sibling M, is a descendant of haplogroup L3. The gene variant responsible for blond hair in the islanders is distinctly different from the gene that causes blond hair in Europeans. Naturally blonde hair is often associated with white or Caucasian people. Why is Western Europe wealthier than Eastern Europe? For example, the allele for blue eyes is common in Europe, but absent in Africa and Asia. The fact that both the M and the N macrohaplogroups are dated near the trough in the first ice age supports the explanation that the M and N coalescence was the result of the extinguishment of most mtDNA haplogroups due to Toba and the first ice age. A group of alleles that are inherited together is a “haplotype,” a group of haplotypes is a “haplogroup,” and a group of haplogroups is a “macrohaplogroup.”, There are two mtDNA macrohaplogroups, known as M and N, which include all Eurasians, but very few Africans. Journal of Human Evolution; 39(1): 57-106.

How do you think about the answers? Certain alleles are more common in some populations than in others. There are higher numbers of females born blonde than males and retention of blonde hair into adulthood is a sexually selected indicator of fitness in females.4 Caucasian blondes are usually slightly higher in oestrogen than brunettes and are likely to exhibit other infantile sexually selected traits (indicating low levels of testosterone) that are considered desirable by males, for example finer facial features, smaller nose, smaller jaw, pointed chin, narrow shoulders, smooth skin and less body hair, and infantile behaviour such as higher energy levels and playfulness.5.

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