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The DNA test I took through National Geographic was very interesting - and expensive - over £100 to find out my MtDNA haplogroup. This is the line going through my mum, her mum, her mum, etc. all the way back to approx 8000BC. My mum's side are all extremely fair so was surprised to find out that the original line came from Turkey and then migrated to Ireland at this time. But we like to think it's where we inherited our green eyes :P