ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³ÖÖ´ÆÐÛͬÖêÖ²ÎïµÄ»¨É«ÊÜÁ½¶Ô¶ÀÁ¢ÒÅ´«µÄµÈλ»ùÒò¿ØÖÆ¡£A»ùÒò¿ØÖÆijÖÖС·Ö×ÓÉ«Ëغϳɣ¬¸ÃÉ«ËØÔڽϵÍpHÏÂÏÔ°×É«£¬ÖÐpHÏÂÏÔºìÉ«£¬½Ï¸ßpHÏÂÏÔ×ÏÉ«¡£B»ùÒò¿ØÖÆÒºÅÝĤÉÏÇâÀë×ÓÔØÌåµÄºÏ³É£¬´Ó¶øÓ°ÏìÒºÅݶÔÇâÀë×ÓµÄÎüÊÕ£¬ÇÒÔØÌåÊýÁ¿Óë»ùÒòÐ͹ØϵÈçͼËùʾ¡£ÏÂÁÐÐðÊöÕýÈ·µÄÊÇ
A. ¿ÉÒÔÓÃ×Ô½»µÄ·½·¨¼ø¶¨Ä³°×»¨Ö²ÖêÊÇ·ñΪ´¿ºÏ×Ó
B. »ùÒòÐÍΪAaBbµÄÖ²Öê×Ô½»£¬ºó´ú±íÏÖΪºì£º°×£º×Ï=6:7:3
C. A»ùÒòµÄÄ£°åÁ´×ªÂ¼ÎªmRNA£¬mRNA·ÒëÐγÉÉ«ËØ
D. B¡¢b»ùÒòµÄÏÔÐÔ±íÏÖÐÎʽΪ¹²ÏÔÐÔ
¡¾´ð°¸¡¿B
¡¾½âÎö¡¿
¸ù¾ÝÌâÒâ·ÖÎö£¬A_ÔڽϵÍpHÏÂÏÔ°×É«£¬ÖÐpHÏÂÏÔºìÉ«£¬½Ï¸ßpHÏÂÏÔ×ÏÉ«£¬aa±íÏÖΪ°×É«¡£¾Ýͼ·ÖÎö£¬BBÔØÌåÏà¶Ôº¬Á¿×î¸ß£¬pHÏÔËáÐÔ£»BbÔØÌåÏà¶Ôº¬Á¿Öеȣ¬pHÏÔÖÐÐÔ£»bbûÓÐÔØÌ壬pHÏÔ¼îÐÔ¡£
¸ù¾ÝÒÔÉÏ·ÖÎö¿ÉÖª£¬ÔڽϵÍpHÏÂAA¡¢Aa¡¢aa¶¼±íÏÖΪ°×»¨£¬ÎÞ·¨Í¨¹ý×Ô½»ÊµÑé·¨¼ø¶¨Æä»ùÒòÐÍ£¬A´íÎó£»»ùÒòÐÍΪAaBbµÄÖ²Öê×Ô½»£¬ºó´úAA£ºAa:aa=1:2:1£¬BB:Bb£ºbb=1:2:1£¬Òò´Ëºó´úºì£¨A_Bb£©£º°×£¨__ BB +aaBb+aabb£©£º×Ï£¨A_bb£©=£¨3/4¡Á1/2£©£º£¨1/4+1/4¡Á1/2+1/4¡Á1/4£©£º£¨3/4¡Á1/4£©=6:7:3£¬BÕýÈ·£»A»ùÒòµÄÄ£°åÁ´×ªÂ¼ÎªmRNA£¬mRNA·ÒëÐγÉø£¬Ã¸´ß»¯ÐγÉÉ«ËØ£¬C´íÎó£»B¡¢b»ùÒòµÄÏÔÐÔ±íÏÖÐÎʽΪ²»ÍêÈ«ÏÔÐÔ£¬D´íÎó¡£