?·???·???
??????? DNA ??? 16k ??????????????? C+A ? T+G ????????????????????????????????????????????????????????????????? DNA ????????“????”??????????????????? 250 ?????????????????????????????????????????????????????????????a????250 ?????????????? DNA ?? 1 ????b???????????????????? DNA ???“??????”??c?“???”????? 250 ??????????? DNA ?????????
分享此文章
English 
Spanish 
Russian 
German 
French 
Japanese 
Portuguese 
Hindi 