ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³¶àÄêÉúÖ²ÎïµÄ»¨É«ÊÜÁ½¶Ô¶ÀÁ¢ÒÅ´«µÄ»ùÒò¿ØÖÆ£¬B¡¢b·Ö±ð¿ØÖÆÀ¶É«ºÍ°×É«£¬µ«ÊÇB»ùÒòµÄ±í´ïÊܵ½A»ùÒòÒÖÖÆ£¬´æÔÚAAʱ¿ªºì»¨£¬´æÔÚAaʱ¿ª·Ûºì»¨£¬½«´¿ºÏºì»¨Ö²ÖêºÍÀ¶»¨Ö²ÖêÔÓ½»£¬F1È«ÊǷۺ컨£¬F1×Ô½»µÃµ½µÄF2ÖУ¬ºì»¨£º·Ûºì»¨£ºÀ¶»¨£º°×»¨=4:8:1:1¡£Çë»Ø´ð£º
£¨1£©F1µÄ»ùÒòÐÍÊÇ_____£»F2Öк컨µÄ»ùÒòÐÍÓÐ___ÖÖ£¬ÆäÖд¿ºÏ×ÓÕ¼______¡£
£¨2£©·ÖÎöF2µÄ±íÏÖÐͺͱÈÀý£¬Ä³Í¬Ñ§Ìá³öµÄ¼ÙÉèÊÇ»ùÒòÐÍΪ_____µÄ¸öÌåÖÂËÀ¡£ÇëÉè¼ÆÒ»´ÎÔÓ½»ÊµÑéÖ¤Ã÷¸Ã»ùÒòÐÍÖÂËÀµÄ¼ÙÉèÊǺÏÀíµÄ¡£
¢ÙʵÑé·½°¸£ºÈÃF1Óë______ÔÓ½»£¬¹Û²ì²¢Í³¼Æ×Ó´úµÄ±íÏÖÐͼ°±ÈÀý¡£
¢ÚÔ¤ÆÚʵÑé½á¹û£º______________¡£
£¨3£©ÈôÉÏÌâ¼ÙÉè³ÉÁ¢£¬¼ÙÉèËùÓÐÖ²Öê×Ô½»²úÉúµÄºó´úÊýÁ¿¶¼ÏàµÈ£¬F2Öзۺ컨×Ô½»£¬ºó´úÖа׻¨Õ¼_______¡£
¡¾´ð°¸¡¿AaBb 3 1/2 aaBb ¢Ù°×»¨Ö²Öê ¢Ú×Ó´úµÄ±íÏÖÐͼ°±ÈÀýΪ·Ûºì»¨£º°×»¨=2:1 1/10
¡¾½âÎö¡¿
¸ù¾ÝÌâ¸ÉÐÅÏ¢·ÖÎö¿ÉÖª£¬¸ÃÖ²ÎﻨɫÖк컨µÄ»ùÒòÐÍΪAA__£¬·Ûºì»¨»ùÒòÐÍΪAa__£¬À¶»¨»ùÒòÐÍΪaaB_£¬°×»¨»ùÒòÐÍΪaabb£»½«´¿ºÏºì»¨Ö²ÖêºÍÀ¶»¨Ö²ÖêÔÓ½»£¬F1È«ÊǷۺ컨£¬Æä×Ô½»ºó´ú³öÏÖÁËËÄÖÖ»¨É«£¬ËµÃ÷F1·Ûºì»¨»ùÒòÐÍΪAaBb£¬Ç×±¾»ùÒòÐÍΪAAbb¡¢aaBB£¬×Ó¶þ´úÀíÂÛÉϺ컨£¨AA__£©£º·Ûºì»¨£¨Aa__£©£ºÀ¶»¨£¨aaB_£©£º°×»¨£¨aabb£©=4:8:3:1£¬¶øʵ¼ÊÉϵıÈÀýΪ4:8:1:1£¬ËµÃ÷À¶»¨ÖÐÓÐ2·ÝÔÓºÏ×ÓaaBb²»Äܳɻ
£¨1£©¸ù¾ÝÒÔÉÏ·ÖÎöÒÑÖª£¬F1·Ûºì»¨»ùÒòÐÍΪAaBb£»F2Öк컨µÄ»ùÒòÐÍÓÐ3ÖÖ£¬·Ö±ðÊÇAABB¡¢AABb¡¢AAbb£¬ÆäÖд¿ºÏ×ÓÕ¼1/2¡£
£¨2£©¢Ù¸ù¾ÝÒÔÉÏ·ÖÎöÒÑÖª£¬ÖÂËÀµÄ»ùÒòÐÍÓ¦¸ÃÊÇaaBb£¬¿ÉÒÔͨ¹ý²â½»ÊµÑé½øÐÐÑéÖ¤£¬¼´ÈÃF1Óë°×»¨Ö²ÖêaabbÔÓ½»£¬¹Û²ì²¢Í³¼Æ×Ó´úµÄ±íÏÖÐͼ°±ÈÀý¡£
¢Úºó´úÀíÂÛÉÏAaBb:Aabb:aaBb:aabb=1:1:1:1£¬Èô¸Ã»ùÒòÐÍȷʵ²»ÄܳɻÔòºó´úµÄ±íÏÖÐͼ°±ÈÀýΪ·Ûºì»¨£º°×»¨=2:1¡£
£¨3£©ÈôÉÏÌâ¼ÙÉè³ÉÁ¢£¬¼ÙÉèËùÓÐÖ²Öê×Ô½»²úÉúµÄºó´úÊýÁ¿¶¼ÏàµÈ£¬F2Öзۺ컨£¨1/4AaBB¡¢1/2AaBb¡¢1/4Aabb£©×Ô½»£¬ºó´úÖа׻¨Õ¼£¨1/2¡Á1/16+1/4¡Á1/4£©¡Â£¨1-1/2¡Á2/16£©=1/10¡£