????: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????

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

?:???