Origin Of Red Hair And Blue Eyes
Olivia Luz
Red hair and blue eyes is rare.
Red hair occurs naturally in one to two percent of the human population while just 17 percent of the world s population has blue eyes. Because blue eyes contain less melanin than green hazel or brown eyes they may be more susceptible to damage from uv and blue light. How does someone get red hair and blue eyes gene characteristics fall. In chinese sources ancient kyrgyz people were described as fair skinned green or blue eyed and red haired people with a mixture of european and east asian features.
Mc1r is like a control point. Having red hair or green eyes or both all comes down to your genes. Your genetic makeup is based on a combination of markers your parents have passed to you. Regarding connections between eye colour and eye diseases research has shown darker iris colour is associated with an increased risk of cataract and a reduced risk of ocular uveal melanoma a form of eye cancer compared with blue eyes.
As early as the fifth century bc herodotus described the budini a scythian tribe from the central western eurasian steppes as having grey eyes and red hair as were the thracians whose lands covered parts of modern turkey southeastern bulgaria and northeast greece. For such an influential figure very little is known about genghis kahn s personal life or even his physical appearance. Muqan qaghan the third qaghan of the turkic khaganate was said to have red hair and blue eyes. Sometimes however the genetic stars align and individuals are born with the rare combination of red hair and blue eyes.
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The map of red heads in northern and western europe also correlates with the frequency of y chromosomal haplogroup r1b thought to be linked to the origins of red hair. The 45th parallel north which runs exactly halfway between the equator and the north pole appears to be a major natural boundary for red hair frequencies. The combination of having both red hair and blue eyes is so rare because blue eye color is also a recessive trait meaning both parents must carry the gene for a child to have it.Source : pinterest.com