The mystery of jing is about something more complex than previously thought.
What they believed was this JING They inherited two copies of a gene called MC1R, one from the mother and one from the father.
This MC1R gene is called recessive. Therefore, it is not expressed in the presence of a dominant gene. However, researchers have shown that many times there are people who have the gene but do not have orange hair.
The study of Edinburgh University in the UK investigated the behavior of this MC1R gene. They analyzed that for European women there is a two times higher chance of being blonde. But the population of Scotland is 13% of the population peony, Which is equal to 650,000 people. For world data, the percentage is 1 to 2%.
The scientists studied the DNA of nearly 350,000 people and concluded that red hair was the result of a complex interaction of at least eight genes. JING With that of people with brown or black hair, they found eight differences associated with hair color.
The conclusion is that the orange color is not the result of a recessive gene, but of a complex interaction of at least eight genes.
The researchers also found differences in nearly 200 genes associated with people with blond or dark hair. Something surprising to scientists is that many of these genetic differences are related not to pigmentation, but to hair texture and hair type (curls, straight, wavy).
The study was published in the journal Nature Communications.
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