"Genes don't die out unless there is a disadvantage of having that gene or by chance. They don't disappear," he told BBC News Online.
"The only reason blondes would disappear is if having the gene was a disadvantage and I do not think that is the case.
"The frequency of blondes may drop but they won't disappear." It is believable that the frequency of blondes may lower but its not believable that they would completely die out in 200 years.
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