ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿¿Æѧ¼ÒÍƲâDNA¿ÉÄÜÓÐÈçͼAËùʾµÄÈýÖÖ¸´ÖÆ·½Ê½¡£1958Ä꣬MeslsonºÍStahlÓÃÃܶÈÌݶÈÀëÐĵķ½·¨£¬×·×ÙÓÉ15N±ê¼ÇµÄDNAÇ×±¾Á´µÄÈ¥Ïò£¬ÊµÑé¹ý³ÌÊÇ£ºÔÚµªÔ´Îª14NµÄÅàÑø»ùÉÏÉú³¤µÄ´ó³¦¸Ë¾ú£¬ÆäDNA·Ö×Ó¾ùΪ14N£­DNA£¨¶ÔÕÕ£©£¬ÔÚµªÔ´Îª15NµÄÅàÑø»ùÉÏÉú³¤µÄ´ó³¦¸Ë¾ú£¬ÆäDNA¾ùΪ15N¡ªDNA£¨Ç×´ú£©£¬½«Ç×´ú´ó³¦¸Ë¾úתÒƵ½º¬14NµÄÅàÑø»ùÉÏ£¬ÔÙÁ¬Ðø·±Ö³Á½´ú£¨×Ó´úIºÍ×Ó´ú¢ò£©ºóÀëÐĵõ½ÈçͼBËùʾµÄ½á¹û¡£ÇëÒÀ¾ÝÉÏÊö²ÄÁϻشðÎÊÌ⣺

£¨1£©DNA¾«È·¸´ÖƵÄÔ­ÒòÊÇ £¬ DNA¸´Öƹý³ÌÖÐÓõ½ÁËÖÖRNA£¬DNA¸´ÖÆÓÐÒâÒå¡£
£¨2£©Èç¹ûÓë¶ÔÕÕÏà±È£¬×Ó´úIÀëÐĺóÄÜ·Ö±æ³öÇáºÍÖØÁ½ÌõÃܶȴø£¬Ôò˵Ã÷DNA´«µÝÒÅ´«ÐÅÏ¢µÄ·½Ê½ÊÇ¡£Èç¹û×Ó´úIÀëÐĺóÖ»ÓÐ1ÌõÖеÈÃܶȴø£¬Ôò¿ÉÒÔÅųýDNA´«µÝÒÅ´«ÐÅÏ¢µÄ·½Ê½ÊÇ¡£Èç¹û×Ó´úIÀëÐĺóÖ»ÓÐ1ÌõÖеÈÃܶȴø£¬ÔÙ¼ÌÐø×ö×Ó´ú¢òµÄDNAÃܶȼø¶¨£º¢ÙÈô×Ó´ú¢òÀëÐÄºó £¬ Ôò¿ÉÒÔÈ·¶¨DNA´«µÝÒÅ´«ÐÅÏ¢µÄ·½Ê½ÊÇÈ«±£Áô¸´ÖÆ¡£¢ÚÈô×Ó´ú¢òÀëÐĺó²»ÄÜ·Ö³öÖС¢ÇáÁ½ÌõÃܶȴø£¬Ôò¿ÉÒÔÈ·¶¨DNA´«µÝÒÅ´«ÐÅÏ¢µÄ·½Ê½ÊǵĿÉÄÜ¡£
ËûÃǹ۲âµÄʵÑéÊý¾ÝÈçÏ£ºÌݶÈÀëÐÄDNA¸¡Á¦Ãܶȣ¨g/ml£©±í

ÊÀ´ú

ʵÑé

¶ÔÕÕ

Ç×´ú

1£®724

1£®710

×Ó¢ñ´ú

1£®717

1£®710

×Ó¢ò´ú

£¨1/2£©1£®717£¬£¨1/2£©1£®710

1£®710

×Ó¢ó´ú

£¨1/4£©1£®713£¬£¨3/4£©1£®710

1£®710


£¨3£©·ÖÎöʵÑéÊý¾Ý¿ÉÖª£ºÊµÑé½á¹ûÓëµ±³õÍƲâµÄDNAÈýÖÖ¿ÉÄܸ´ÖÆ·½Ê½Öеķ½Ê½ÏàÎǺϡ£

¡¾´ð°¸¡¿
£¨1£©¶ÀÌصÄË«ÂÝÐý½á¹¹Ìṩģ°å£¬¼î»ù»¥²¹Åä¶ÔÔ­Ôò£»0£»½«ÒÅ´«ÐÅÏ¢´ÓÇ×´ú´«¸ø×Ó´ú£¬±£³ÖÒÅ´«ÐÅÏ¢µÄÁ¬ÐøÐÔ
£¨2£©È«±£Áô¸´ÖÆ£»È«±£Áô¸´ÖÆ£»¿ÉÒÔ·Ö³öÖС¢ÇáÁ½ÌõÃܶȴø£»·ÖÉ¢¸´ÖÆ
£¨3£©°ë±£Áô¸´ÖÆ
¡¾½âÎö¡¿£¨1£©DNA¾«È·¸´ÖƵÄÔ­ÒòÊÇÄ£°åºÍ¼î»ù»¥²¹Åä¶ÔÔ­Ôò¡£DNA¸´Öƹý³ÌÖÐûÓÐRNA²ÎÓë¡£DNA¸´ÖÆ·¢ÉúÔÚϸ°û·ÖÁѵļäÆÚ£¬Í¨¹ýϸ°û·ÖÁÑ¿ÉÒÔ½«ÒÅ´«ÐÅÏ¢´ÓÇ×´ú´«¸ø×Ó´ú£¬±£³ÖÒÅ´«ÐÅÏ¢µÄÁ¬ÐøÐÔ¡££¨2£©×Ó´úIÀëÐĺóÄÜ·Ö±æ³öÇᣨ¾ÍÊÇÁ½ÌõÁ´¶¼ÊÇ14N£©ºÍÖØ£¨¾ÍÊÇÁ½ÌõÁ´¶¼ÊÇ15N£©Á½ÌõÃܶȴøµÃ³öÊÇÈ«±£Áô¸´ÖÆ¡£Èç¹û×Ó´úIÀëÐĺóÖ»ÓÐ1ÌõÖеÈÃܶȴø¿Ï¶¨²»¿ÉÄÜÊÇÈ«±£Áô¸´ÖÆ£¬¿ÉÄÜÊÇ°ë±£ÁôºÍ·ÖÉ¢¸´ÖÆûÓÐÈ«ÇáºÍÈ«ÖØ¡£µÚ¶þ´Î¸´ÖÆ°ë±£Áô¸´ÖÆ£¬×Ó´ú¢ò»áÓÐ ÖÐ Ç᣻ÈôÊÇÈ«±£Áô»áÓÐ ÖØ£»ÈôÊÇ·ÖÉ¢¸´ÖÆÖ»ÄÜÊÇÒ»ÑùÖØ¡££¨3£©´ÓÌâÒâ×Ó´úI¶¼ÊÇÖУ¬×Ó´ú¢ò ÖÐ Çᣬ×Ó´ú¢óÊÇ ÖÐ ÇᣬÕâÊÇ°ë±£Áô¸´ÖƵÃÌص㡣

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

¡¾ÌâÄ¿¡¿¼¦µÄÐÔ±ð¾ö¶¨·½Ê½ÊÇZWÐÍ£¨ZZΪÐÛÐÔ£¬ZWΪ´ÆÐÔ£©¡£Ñо¿ÈËÔ±ÓÃÒ»¶¨Å¨¶ÈµÄ·¼Ï㻯øÒÖÖƼÁ´¦ÀíÁË200¸öÐÔȾɫÌåΪZWµÄ¼¦µ°¡£·¢ÏÖÓÐ76¸ö¼¦µ°·õ»¯²¢·¢Óý ³É¾ßÓÐÍêÕûÐÛÐÔÉúÖ³Æ÷¹ÙµÄÐÛ¼¦£¨·¢ÉúÐÔ·´×ª£©¡£Çë»Ø´ð£º

£¨1£©Õâ76Ö»ÐÛ¼¦µÄÐÔȾɫÌå×é³ÉÈÔÊÇZW£¬ËµÃ÷ÉúÎïµÄÐÔ×´ÊÇ__________µÄ½á¹û¡£

£¨2£©ÓÉÉÏÊöʵÑé¿ÉÖª£¬´Æ¼¦µÄԭʼÐÔÏÙ¿É·¢Óý³É____________£»·¼Ï㻯øÒÖÖƼÁ¿É´Ù½ø´Æ¼¦µÄԭʼÐÔÏÙ·¢Óý³É___________£»´Æ¼¦ÐÔ·´×ªÐγÉÐÛ¼¦ºó£¬ÆäÌåÄڴƼ¤Ëغ¬Á¿__________£¨Ìî¡°Éý¸ß¡±¡°½µµÍ¡±»ò¡°²»±ä¡±£©¡£

£¨3£©¼¦µÄ«»¨£¨ÓðëºÚ°×Ïà¼ä£©Óë·Ç«»¨ÊÇÒ»¶ÔÏà¶ÔÐÔ×´£¬Â«»¨ÓÉλÓÚZȾɫÌåÉϵÄB»ùÒò¾ö¶¨¡£²»¿¼ÂÇÐÔ·´×ªµÄÇé¿öÏ£¬ÇëÓÃÒÅ´«Í¼½â±íʾ·Ç«»¨ÐÛ¼¦Óë«»¨´Æ¼¦½»Åä²úÉúºó´úµÄÇé¿ö¡£___

£¨4£©Ñо¿·¢ÏÖÐÔȾɫÌåΪWWµÄÅßÌ¥²»ÄÜ´æ»î£¬¾Ý´ËÍƲ⣬¼¦µÄÁ½ÖÖÐÔȾɫÌåÖУ¬ÓëÅßÌ¥ÄÜ·ñ´æ»îÃÜÇÐÏà¹ØµÄÒÅ´«ÐÅÏ¢Ö÷Òª´æÔÚÓÚ_______________ȾɫÌåÉÏ£»ÒÅ´«Ñ§¼Ò·¢ÏÖÉÙÊý´Æ¼¦ÂÑϸ°ûÓëÆäͬʱ²úÉúµÄÈý¸ö¼«ÌåÖ®Ò»½áºÏÒ²¿ÉÒÔ·¢Óý³É¶þ±¶Ìåºó´ú£¬ÀíÂÛÉϴƼ¦Í¨¹ýÕâÖÖ·½Ê½²úÉúµÄºó´úÖУ¬ÐÔȾɫÌå×é³ÉΪZWµÄ¼¸ÂÊÊÇ__________¡£

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø