????:1?????????:????????

2??????????????

3???????????

4???????

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???????

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

??:?????