????: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??

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

???:?????