????: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???????

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

???????:?????