国产成人av综合色-国产成人a人亚洲精品无码-国产成人a亚洲精v品无码-国产成人a在线观看视频免费-国产成人a在线观看视频免费-国产成人精品123区免费视频

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