ÌâÄ¿ÄÚÈÝ
15£®ÒҸα»³ÆΪ¡°ÖйúµÚÒ»²¡¡±£¬ÈËÃǶÔÒҸβ¡¶¾µÄÖ²¡»úÀíÓкܶàÑо¿³É¹û£®ÒÑÖªÒҸβ¡¶¾µÄDNAÓÉÒ»Ìõ»·×´ÍÑÑõºËÜÕËáÁ´ºÍÒ»Ìõ½Ï¶ÌµÄ°ë»·×´ÍÑÑõºËÜÕËáÁ´¹¹³É£¬µ±²¡¶¾ÇÖȾµ½È˸Îϸ°ûÄÚʱ£¬»áÏÈÐγÉÍêÕûµÄ»·×´£¬ÔÙÀûÓÃÆäÖÐÒ»ÌõÁ´×÷Ϊģ°åÐγÉ×Ó´ú²¡¶¾£¬¹ý³ÌÈçͼËùʾ£º£¨1£©¢Ü¹ý³ÌÊÇת¼£¬¢Ý¹ý³ÌÊÇ·Ò룮
£¨2£©·¢ÉúÁ˼î»ù»¥²¹Åä¶ÔÏÖÏóµÄ¹ý³ÌÓТۢܢݢߣ®£¨ÌîͼÖÐÐòºÅ£©
£¨3£©¸ù¾Ýͼʾд³öÒҸβ¡¶¾ÒÅ´«ÐÅÏ¢µÄ´«µÝ¹ý³Ì£º£®
£¨4£©ÎïÖÊaµÄ×÷ÓÃÊÇ×÷Ϊ·ÒëºÍÄæת¼µÄÄ£°å£¬ÔÚϸ°ûÄÚ£¬Óëa»¯Ñ§±¾ÖÊÏàͬµÄÎïÖÊ»¹ÓÐtRNA¡¢rRNAµÈ£®
£¨5£©ºÏ³É¹ý³Ì¢Ý¡¢¢ßµÄ²úÎïËùÐèµÄÔÁÏÖÖÀàÊý·Ö±ðΪ20¡¢4ÖÖ£®
£¨6£©Íê³É¹ý³Ì¢ßËùÐèÒªµÄÒ»ÖÖÌØÊâµÄøÊÇÄæת¼ø£®
·ÖÎö ·ÖÎöÌâͼ£ºÍ¼Ê¾±íʾÒҸβ¡¶¾µÄ·±Ö³¹ý³Ì£¬ÆäÖТڱíʾעÈ룬ֻÓÐRNA½øÈëϸ°û£»¢ÛÊÇDNA¸´Öƹý³Ì£»¢ÜÊÇת¼¹ý³Ì£»¢ÝÊÇ·Òë¹ý³Ì£»¢ÞÊÇRNAºÍµ°°×ÖÊÍâ¿Ç½øÐÐ×é×°µÄ¹ý³Ì£»¢ßÊÇÄæת¼¹ý³Ì£®
½â´ð ½â£º£¨1£©ÓÉͼ¿ÉÖª¢Ü¹ý³ÌÊÇת¼£¬¢Ý¹ý³ÌÊÇ·Ò룮
£¨2£©·¢ÉúÁ˼î»ù»¥²¹Åä¶ÔÏÖÏóµÄ¹ý³ÌÓТÛDNA¸´Öƹý³Ì£¬¢Üת¼¹ý³Ì£¬¢Ý·Òë¹ý³Ì£¬¢ßÄæת¼¹ý³Ì£®
£¨3£©¸ù¾Ýͼʾ¿ÉÖªÒҸβ¡¶¾ÒÅ´«ÐÅÏ¢µÄ´«µÝ¹ý³ÌΪ£º£®
£¨4£©ÎïÖÊaÊÇת¼²úÎïmRNA£¬Æä×÷ÓÃÊÇ×÷Ϊ·ÒëºÍÄæת¼µÄÄ£°å£¬ÔÚϸ°ûÄÚ£¬Óëa»¯Ñ§±¾ÖÊÏàͬµÄÎïÖÊ»¹ÓÐtRNA¡¢rRNAµÈ£®
£¨5£©·Òë¹ý³ÌÐèÒªµÄÔÁÏÊÇ20ÖÖÓÎÀëµÄ°±»ùËᣬÄæת¼¹ý³ÌµÄÔÁÏÊÇ4ÖÖÓÎÀëµÄÍÑÑõºËÌǺËÜÕËᣮ
£¨6£©¢ßÊÇÄæת¼¹ý³Ì£¬Íê³É¹ý³Ì¢ßËùÐèÒªµÄÒ»ÖÖÌØÊâµÄøÊÇÄæת¼ø£®
¹Ê´ð°¸Îª£º
£¨1£©×ªÂ¼ ·Òë
£¨2£©¢Û¢Ü¢Ý¢ß
£¨3£©
£¨4£©×÷Ϊ·ÒëºÍÄæת¼µÄÄ£°å tRNA rRNA£¨tRNA¡¢rRNA˳Ðò¿Éµßµ¹£©
£¨5£©20¡¢4£¨Ë³Ðò²»¿Éµßµ¹£©
£¨6£©Äæת¼ø
µãÆÀ ±¾Ìâ½áºÏÒҸβ¡¶¾·±Ö³¹ý³Ì£¬¿¼²éÖÐÐÄ·¨Ôò¼°Æä·¢Õ¹¡¢ÒÅ´«ÐÅÏ¢µÄת¼ºÍ·Ò룬ҪÇó¿¼Éúʶ¼ÇÖÐÐÄ·¨ÔòµÄÖ÷ÒªÄÚÈݼ°ºóÈ˶ÔÆä½øÐеIJ¹³äºÍÍêÉÆ£¬ÄÜ׼ȷÅжÏͼÖи÷¹ý³ÌµÄÃû³Æ£»Ê¶¼ÇÒÅ´«ÐÅϢת¼ºÍ·ÒëµÄ¹ý³Ì¡¢³¡Ëù¡¢Ìõ¼þ¼°²úÎïµÈ£¬ÄܽáºÏͼÖеÄÐÅÏ¢´ðÌ⣮
A£® | AB¶ÎºÍEF¶ÎȾɫÌåÊýÄ¿ÏàµÈ£¬¾ù°üº¬N¶ÔͬԴȾɫÌå | |
B£® | AB¶Îϸ°ûµÄÃû³ÆÊdzõ¼¶¾«Ä¸Ï¸°û£¬CF¶Îϸ°ûµÄÃû³ÆÊǴμ¶¾«Ä¸Ï¸°û£¬FG¶Îϸ°ûµÄÃû³ÆÊǾ«×Ó | |
C£® | AB¶ÎºÍEF¶Îϸ°ûÄÚµÄDNA·Ö×ÓÊý²»Í¬ | |
D£® | CD¶Îϸ°ûÄÚÓÐN¸öDNA·Ö×Ó£¬EF¶Îϸ°ûÄÚÓÐ2N¸öDNA·Ö×Ó |
A£® | ¢ÜËùʾµÄ½á¹¹ÖÐÖü´æÁËDNA·Ö×ÓµÄÒÅ´«ÐÅÏ¢ | |
B£® | ²»Í¬ÉúÎïµÄDNA·Ö×ÓÖТܵÄÖÖÀàûÓÐÌØÒìÐÔ | |
C£® | ¸ÃƬ¶ÎµÄÁ½ÌõÁ´¶¼¿É×÷Ϊת¼µÄÄ£°åÁ´ | |
D£® | DNA¾ÛºÏø¿É´ß»¯Ðγɢݴ¦»¯Ñ§¼ü |
A£® | ͼʾϸ°ûΪ´Î¼¶¾«Ä¸Ï¸°û£¬Ï¸°ûÖк¬Á½¶ÔͬԴȾɫÌå | |
B£® | ¸Ã¾«Ôϸ°û²úÉúµÄ¾«×Óϸ°û»ùÒòÐÍÓÐABe¡¢aBe¡¢AbE | |
C£® | ͼʾϸ°ûÖеÄa»ùÒò¿ÉÄÜÀ´×ÔÓÚ»ùÒòÍ»±ä£¬²»¿ÉÄÜÀ´×ÔÓÚ»ùÒòÖØ×é | |
D£® | Èý¶Ô»ùÒòµÄÒÅ´«×ñÑ»ùÒòµÄ×ÔÓÉ×éºÏ¶¨ÂÉ |