Scientists say they have developed a way to predict a person’s probable hair colour using markers in their DNA. The study paves the way for a forensic test that could estimate the hair colour of a suspect from DNA left at a crime scene.
A Dutch-Polish team of researchers have published details in the journal Human Genetics. The researchers found that it was possible to determine with an accuracy of more than 90% whether a person had red hair, with a similar accuracy for people with black hair They could estimate with an accuracy of more than 80% whether a person’s hair color was blonde or brown.
This new genetic approach is also able to differentiate between some hair colours that are similar, for example, between red and reddish blonde, or between blonde and dark blonde hair.
The DNA can be taken from blood, sperm, saliva or other samples that would be relevant in forensic case work, say the researchers. Lead scientist Manfred Kayser, from Erasmus University Medical Center in Rotterdam, said：That we are now making it possible to predict different hair colours from DNA represents a major breakthrough because, so far, only red hair colour, which is rare, could be estimated from DNA.
forensic：形容詞，法醫的。例句：Forensic examination revealed a large quantity of poison in the dead man’s stomach.（法醫檢驗發現死者胃部有大量毒藥。）
suspect：名詞，嫌犯。例句：The prime suspect in the case committed suicide.（此案主嫌自殺了。）
differentiate：動詞，區分。例句：We do not differentiate between our workers on the basis of their background or ethnic origin.（我們不會因為背景或是種族區分員工。）