在线观看免费av福利_在线永久无码不卡av_2021人人色不卡_亚洲永久免费观看 亚洲国产av玩弄放荡人妇_亚洲国产精品嫩草影院_国产sm重味一区二区三区_久久综合色鬼综合色

One-Fifth of Human Genes Have Been Patented

October 17, 2005
A new study shows that 20 percent of human genes have been patented in the United States, primarily by private firms and universities.

　

Keywords