By Graeme Murray There are six key indicators that show you have Neanderthal DNA, genetic experts say. Up to two per cent of our DNA comes from our ancient predecessors. Around 60,000 years ago and Africa and Asia interbreeding happened with Neanderthals. Sebnem Unluisler, a genetic engineer, says genes impacted everything from the colour of hair to nicotine addiction among humans nowadays. Unluisler, of the London Regenerative Institute said: “Neanderthal DNA represents only a small percentage of the modern human genome, and these influences are just one piece of the genetic puzzle that makes…