ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¿Æѧ¼ÒÑо¿·¢ÏÖ£¬¦ÂÖéµ°°×»ùÒòµÄÍ»±äÊǵ¼ÖÂÁµ¶ÐÍϸ°ûƶѪ֢µÄÔªÐס£¸ÃÍ»±äµ¼Ö¦ÂÖéµ°°×ÖÐÕý³£µÄ¹È°±Ëá±ä³ÉÁËçÓ°±Ëá¡£ÔÚijµØÇøÈËȺÖÐÓÐ4%µÄÈËÊǸò¡»¼Õߣ¬»áÔÚ³ÉÄê֮ǰËÀÍö£¬³ÉÄêÈËÓÐ36%µÄÈËÊÇЯ´øÕߣ¬²»·¢²¡¡£ÏÂͼÊǸõØÇøij¼Ò×åÁµ¶ÐÍϸ°ûƶѪ֢¼°É«Ã¤µÄÒÅ´«ÏµÆ×ͼ¡££¨Áµ¶ÐÍϸ°ûƶѪ֢»ùÒòΪA¡¢a£¬É«Ã¤»ùÒòΪB¡¢b£©
¸ù¾ÝÉÏÊö×ÊÁÏ£¬»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©¢ò2µÄ»ùÒòÐÍΪ______________ ¡£
£¨2£©¢ò4Óë¢ò5ÔÙÉúÒ»¸öº¢×Ó£¬»¼Áµ¶ÐÍϸ°ûƶѪ֢µÄ¸ÅÂÊÊÇ_________________£¬Èôº¢×ÓÒѳöÉú£¬Ôò¿ÉÒÔÔÚ¹âѧÏÔ΢¾µÏ¹۲캢×ӵĺìϸ°ûµÄÐÎ̬£¬´Ó¶øÕï¶ÏÆäÊÇ·ñ»¼Áµ¶ÐÍϸ°ûƶѪ֢£»Èôº¢×ÓÉÐδ³öÉú£¬Ôò¿ÉÒÔ´ÓÑòË®ÖÐÊÕ¼¯ÉÙÁ¿Ì¥¶ùµÄϸ°ûÌáÈ¡³öDNA£¬ÓÃËÄÖÖÍÑÑõºËÜÕËáΪÔÁÏÔÚÊÔ¹ÜÖи´ÖƳö´óÁ¿DNA£¬È»ºó½øÐлùÒòÕï¶Ï¡£
£¨3£©°×»¯²¡Ò²ÊÇÒ»ÖÖ³£È¾É«ÌåÒþÐÔÒÅ´«²¡£¬ÆäÌåÏֵĻùÒò¿ØÖÆÐÔ×´µÄ·½Ê½ÊÇ_____________________________________________________________________¡£
£¨4£©Èô¢ñ1ÔÚ¼õÊý·ÖÁÑʱ²úÉúÁËÒ»¸ö»ùÒò×é³ÉΪAaXBµÄÂÑϸ°û£¬Ôò¸Ãϸ°ûºËÄÚÓÐ____ÌõÍÑÑõºËÜÕËáÁ´£¬Óë֮ͬʱ²úÉúµÄÄǸö¼«ÌåµÄ»ùÒò×é³É×î¿ÉÄÜÊÇ____________________¡£
¡¾´ð°¸¡¿AaXBY 6% »ùÒòͨ¹ý¿ØÖÆøµÄºÏ³É£¬À´¿ØÖÆ´úл¹ý³Ì£¬½ø¶ø¿ØÖÆÉúÎïÌåµÄÐÔ×´ 48 AaXB
¡¾½âÎö¡¿
ÌâÒâ·ÖÎö£¬²»»¼Áµ¶ÐÍϸ°ûƶѪ֢µÄI1ºÍI2»éÅäºóÉú³öÁË»¼Áµ¶ÐÍϸ°ûƶѪ֢µÄÅ®¶ù£¬¾Ý´Ë¿ÉÖª¸Ã²¡Îª³£È¾É«ÌåÒþÐÔÒÅ´«²¡£¬ÓÖ֪ɫäÊÇ°éXÒþÐÔÒÅ´«²¡£¬£¨Áµ¶ÐÍϸ°ûƶѪ֢»ùÒòΪA¡¢a£¬É«Ã¤»ùÒòΪB¡¢b£©£¬Òò´Ë£¬I1ºÍI2µÄ»ùÒòÐÍ·Ö±ðΪAaXBXb¡¢AaXbY¡£
£¨1£©¸ù¾ÝI1ºÍI2µÄ»ùÒòÐÍÔÙ½áºÏ¢ò2µÄ±íÏÖ£¬¿ÉÍÆÖª¢ò2µÄ»ùÒòÐÍΪAAXBY»òAaXBY£¬ÓÉÓÚIII2ÊÇÁµ¶ÐÍϸ°ûƶѪ֢»¼Õߣ¬Òò´Ë¿ÉÈ·¶¨¢ò2µÄ»ùÒòÐÍΪAaXBY¡£
£¨2£©¢ò4µÄ»ùÒòÐÍΪ1/3AA»ò2/3Aa£¨XbXb£©£¬¿ÉÄܵĻùÒòÐÍΪ¢ò5±íÏÖÕý³££¬Æä»ùÒòÐÍΪAaµÄ¸ÅÂÊΪ36%£¬¶þÕß»éÅäÔÙÉúÒ»¸öº¢×Ó£¬»¼Áµ¶ÐÍϸ°ûƶѪ֢µÄ¸ÅÂÊΪ2/3¡Á36%¡Á1/4=6%¡£
£¨3£©°×»¯²¡µÄ²¡ÒòÊÇÓÉÓÚ»ùÒòÍ»±äµ¼ÖÂϸ°ûÖв»ÄܺϳÉÀÒ°±Ëáø£¬Ê¹µÃºÚÉ«ËØÎÞ·¨ºÏ³É£¬Òò´Ë¸ÃÐÔ×´±íÏÖÌåÏֵĻùÒò¿ØÖÆÐÔ×´µÄ·½Ê½Îª¼ä½Ó¿ØÖÆ£¬¼´»ùÒòͨ¹ý¿ØÖÆøµÄºÏ³É£¬À´¿ØÖÆ´úл¹ý³Ì£¬½ø¶ø¿ØÖÆÉúÎïÌåµÄÐÔ×´¡£
£¨4£©ÓÉ·ÖÎö¿ÉÖª£¬I1µÄ»ùÒòÐÍΪAaXBXb£¬Èô¢ñ1ÔÚ¼õÊý·ÖÁÑʱ²úÉúÁËÒ»¸ö»ùÒò×é³ÉΪAaXBµÄÂÑϸ°û£¬¸ÃÂÑϸ°ûÖк¬ÓÐͬԴȾɫÌ壬ÏÔÈ»ÊÇÓÉÓÚ¼õÊýµÚÒ»´Î·ÖÁÑʱЯ´øÓÐAºÍaµÄͬԴȾɫÌåûÓÐÕý³£·ÖÀëµ¼Öµģ¬Òò´Ë²úÉúµÄÂÑϸ°ûÖжàÁËÒ»ÌõȾɫÌ壨Õý³£µÄÂÑϸ°ûÖÐÓÐ23ÌõȾɫÌ壩£¬¼´¸Ãϸ°ûºËÄÚÓÐ24¡Á2=48ÌõÍÑÑõºËÜÕËáÁ´£¨Ã¿¸öDNA·Ö×ÓÖк¬ÓÐÁ½ÌõÍÑÑõºËÜÕËáÁ´£©£¬Óë֮ͬʱ²úÉúµÄÄǸö¼«ÌåÊÇÓɴμ¶ÂÑĸϸ°û¾¹ý×ÅË¿µã·ÖÁѺó²úÉúµÄ×ÓȾɫÌå±Ë´Ë·ÖÀëÖ®ºó½øÈ벻ͬµÄϸ°ûÐγɵģ¬Òò´Ë¸Ã¼«ÌåµÄ»ùÒò×é³ÉÓëÂÑϸ°ûÏàͬ£¬¼´Ò²ÎªAaXB¡£
¡¾ÌâÄ¿¡¿Ï±íËùʾΪÒÅ´«ÐÅÏ¢±í´ïµÄ¹ý³Ì£®·ÖÎö±í£¬¿ÉÖª£¨ £©
»ùÒò | ¡TAT¡ |
mRNA | ¡UAU¡ |
tRNA | ¡AUA¡ |
ëÄÁ´ | ÀÒ°±Ëá |
A.Õû¸ö¹ý³Ì¹²ÓÐ3ÖÖºËÜÕËá²ÎÓë
B.Õû¸ö¹ý³ÌÔÚºËÌÇÌåÉÏÍê³É
C.»ùÒòºÍmRNAÓÐÏàͬµÄÃÜÂë×Ó
D.AUAÊÇ·´ÃÜÂë×Ó