Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 647  |  »Ø¸´: 11
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

xtmgah31

Òø³æ (СÓÐÃûÆø)

[½»Á÷] DNA´¿¶È¼ì²â

ÎÒÌáÁ˴󳦸˾úÖÊÁ£DNA£¬ÓÃ×ÏÍâ·Ö¹â¹â¶È¼Æ²âODºóµÃ³öµÄ½á¹ûÊÇ£º
OD260/OD280=1.65 ,OD260/OD230=2.06
ÁíÍâÒ»ÖÖÖÊÁ£DNAÊÇ£ºOD260/OD280=1.73 ,OD260/OD230=1.73
Çë¸ßÊÖ°ïæ·ÖÎöÒ»ÏÂÕâ¸ö½á¹û£¬Ð»Ð»£¡
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yuyixst

ľ³æ (ÕýʽдÊÖ)

ÈýÁ×ËáÏÙÜÕ ²©Ñ§~~£º£©
10Â¥2008-09-02 08:19:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 12 ¸ö»Ø´ð

ÈýÁ×ËáÏÙÜÕ

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

¡ï ¡ï
reasonspare(½ð±Ò+2,VIP+0):thx
DNA´¿¶È±È½ÏºÃµÄÊÇOD260/OD280=1.8~2.0
230ÄǸöÃ²ËÆÊDzâʲôÓлúËáÖ®ÀàµÄ
ÆäʵÕâ¸ö´¿¶È»¹ºÃÀ²~~~
ÓÐʱºò²»ÔÚÓÚŨ¶ÈºÍ´¿¶ÈÓжàºÃ£¬Äܲ»ÄܰÑÏÂÃæµÄ×ö³öÀ´²ÅÊǹؼü
2Â¥2008-08-31 19:18:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xtmgah31

Òø³æ (СÓÐÃûÆø)

ÎÒÒªÓÃÌáµÄÖÊÁ£DNA°èÔÚ·äÃÛÀïËÇιÃ۷䣬¿´Ëü»á²»»áÓ°ÏìÃÛ·äµÄ³¦µÀ΢ÉúÎ¾ÍÅÂËùÌáµÄDNAÀïÃæµÄijЩÔÓÖÊ»á°ÑÃÛ·ä¶¾ËÀ£¬ºÇºÇ
3Â¥2008-08-31 19:39:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÈýÁ×ËáÏÙÜÕ

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

ÕâÕâÕâÕâÕâÕâ¡­¡­
ÎÒ²»ÖªµÀÔõô˵ÁË~~~
4Â¥2008-08-31 19:51:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 291Çóµ÷¼Á +5 ¹ØÒä±±. 2026-04-14 5/250 2026-04-15 09:30 by ÄæË®³Ë·ç
[¿¼ÑÐ] 273Çóµ÷¼Á +4 °×¾Ó²»Ò×. 2026-04-09 6/300 2026-04-14 19:54 by ÄæË®³Ë·ç
[¿¼ÑÐ] Çóµ÷¼Á +9 СÄô°®Ñ§Ï° 2026-04-11 13/650 2026-04-14 19:18 by Art1977
[¿¼ÑÐ] Ò»Ö¾Ô¸085502£¬267·ÖÇóµ÷¼Á +19 ÔÙæҲҪ³Ô·¹°¡ 2026-04-08 20/1000 2026-04-14 16:03 by zs92450
[¿¼ÑÐ] ¿¼ÑÐÓ¢Ò»ÊýÒ»338·Ö +9 ³¤½­´óѧ¶«Ð£Çø 2026-04-13 10/500 2026-04-14 00:41 by Íõ¬Bè±
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ 0855 »úе 286 Çóµ÷¼Á +11 ²»»á³ÔÈâ 2026-04-12 11/550 2026-04-13 21:59 by bljnqdcc
[¿¼ÑÐ] 293Çóµ÷¼Á +16 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 18/900 2026-04-13 21:47 by ѧԱJpLReM
[¿¼ÑÐ] Ò»Ö¾Ô¸ÏôóÉúÎïѧ332Çóµ÷¼Á +11 ³Ø³Ø³Ø³Ø³Ø³Ø 2026-04-08 11/550 2026-04-13 14:10 by ¿ÆÑÐÂÛ
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸²ÄÁÏ¿ÆÑ§Ó빤³Ì985£¬365·Ö£¬ +8 ²Ä»¯Àî¿É 2026-04-11 10/500 2026-04-12 08:42 by 852137818
[¿¼ÑÐ] 277 ÊýÒ»104£¬Ñ§Ë¶£¬Çóµ÷¼Á +21 Æ¿×ÓPZ 2026-04-09 23/1150 2026-04-11 23:12 by labixiaoqiao
[¿¼ÑÐ] 086003µ÷¼ÁÇóÖú +21 ËÕß®Íò 2026-04-09 22/1100 2026-04-11 20:25 by dongdian1
[¿¼ÑÐ] 270Çóµ÷¼Á +14 ÑîÀÖ369 2026-04-11 14/700 2026-04-11 20:16 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 352 Çóµ÷¼Á +6 yzion 2026-04-11 8/400 2026-04-11 16:24 by Ã÷Ô´ËʱÓÐ
[¿¼ÑÐ] 0854µ÷¼Á +4 ³¤¹­°Á 2026-04-09 4/200 2026-04-11 09:18 by Öí»á·É
[¿¼ÑÐ] Çóµ÷¼Á +5 ²»»á·ÉµÄÓã@ 2026-04-10 5/250 2026-04-10 19:07 by chemisry
[¿¼ÑÐ] µ÷¼Á +19 2261744733 2026-04-08 19/950 2026-04-09 19:11 by vgtyfty
[ÂÛÎÄͶ¸å] ÇóÖúÎÄÏ×Ô­ÎÄ 10+3 18500821399 2026-04-08 3/150 2026-04-09 16:56 by ±±¾©À³ÒðÈóÉ«
[¿¼ÑÐ] »¯Ñ§¹¤³ÌÓë¼¼Êõרҵһ־Ը¹þ¹¤³Ì 291·ÖBÇø ¹ú¼Ò¼¶´ó´´¸ºÔðÈË ÓÐÒ»×÷ÂÛÎÄ +13 Emmy~ 2026-04-09 13/650 2026-04-09 14:47 by onlyÖÜ
[¿¼ÑÐ] 085801 ×Ü·Ö275 ±¾¿ÆÐÂÄÜÔ´ Çóµ÷¼Á +8 bradoner 2026-04-08 9/450 2026-04-09 13:43 by onlyÖÜ
[¿¼ÑÐ] 0860004 Çóµ÷¼Á 309·Ö +6 Yin DY 2026-04-09 6/300 2026-04-09 10:19 by °¡Àî999
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û