æ¯æ¡æè²ä½ä¸DNAçå«éå¹³æ¶æ¯ä¸ä¸ª,å¨ç»èåè£æ¶å¦æDNAå¤å¶äºä¸çä¸ç¹æ²¡æåå¼çè¯,ä¸æ¡æè²ä½ä¸æ两个DNAååã
å¦ä¸å¾æ示ï¼å·¦å¾çæ¯æ¡æè²ä½ä¸æ¯ä¸ä¸ªDNAååï¼å³å¾æ¯ç»è¿å¤å¶åï¼æ¯æ¡æè²ä½ä¸å°±æ¯ä¸¤ä¸ªDNAååã