New research confirms the out of africa hypothesis that all modern humans stem from a single group of homo sapiens who emigrated from africa 2 000 generations ago and spread throughout eurasia. For the first time scientists have decoded the genomes of those older than 100 years in their quest to find out how centenarians avoid age related diseases and survive longer than most people. dna 東 オナニーdna 検査 キット ルーツdna 栄養 学dna 染色体 問題dna 検査 ダイエットdna 染色 仕組みdna 検査 したら 自分 の 子 では なかっ た よーdna 染色試薬 uv