11??????????22??????????,???3???DNA?????????????,3?2007?????????????????,17??

2007??????????2???????????????14?,5??????27??????????,8?18?,???(?,????????????????????2?)??(????,??2????????????)??(????,?????2?)???????3???30???,???“??????”????

??,?,?????????????????????????????,??????????17?3??(2????1???????)??3??

???,??,????(???????? ???)

????:????

“??sn??”_????

?? 3????????“????”?? 17??

????:1???sn??:????????????

2?????????

3????????

4???????9???

5??????

11??????????22??????????,???3???DNA?????????????,3?2007?????????????????,17??

2007??????????2???????????????14?,5??????27??????????,8?18?,???(?,????????????????????2?)??(????,??2????????????)??(????,?????2?)???????3???30???,???“??????”????

??,?,?????????????????????????????,??????????17?3??(2????1???????)??3??

???,??,????(???????? ???)

????:????