²é¿´: 2609  |  »Ø¸´: 7

Suzhipeng

Ìú³æ (СÓÐÃûÆø)

[ÇóÖú] Ë­ÄܽâÊÍÒ»ÏÂÕâ¸öרҵ´Ê»ã:null mutant or null mutation

ÈçÌâ,½âÊÍÒ»ÏÂÕâһרҵÃû´Ê,×îºÃÄܾÙÒ»Á½¸öÀý×Ó~¹²Í¬Ñ§Ï°¹²Í¬½»Á÷~
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÄÐÅÂÈë´íÐУ¬Å®Å¼޴íÀÉ¡£
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Suzhipeng

Ìú³æ (СÓÐÃûÆø)

»¹ÓÐ˳±ã½âÊÍÒ»ÏÂnull alleleµÄÒâ˼~
ÄÐÅÂÈë´íÐУ¬Å®Å¼޴íÀÉ¡£
2Â¥2013-03-02 14:22:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Óð»¯ing

Ìú³æ (³õÈëÎÄ̳)

¡ï ¡ï ¡ï
zhtear99: ½ð±Ò+1, ¸ÐлÄãµÄÈÈÐÄÓ¦Öú£¬Ð¡ºì°ü¹ÄÀøÏ£¬»¶Ó­³£À´~ 2013-03-02 21:17:30
Suzhipeng(zhtear99´ú·¢): ½ð±Ò+2, ¸ÐлÈÈÐÄÓ¦Öú~~ 2013-05-14 20:02:08
null mutant ÎÞЧͻ±äÌå
null mutation  ÎÞЧͻ±ä
ûÓÐŬÁ¦²»Á˵ijɹ¦£¬Ö»Óв»³¢ÊÔµÄʧ°Ü£¡
3Â¥2013-03-02 20:16:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Óð»¯ing

Ìú³æ (³õÈëÎÄ̳)

¡ï
zhtear99: ½ð±Ò+1, ¸ÐлÈÈÐÄÓ¦Öú~~~ 2013-03-02 21:17:54
null allel  ÎÞЧµÈλ»ùÒò
ûÓÐŬÁ¦²»Á˵ijɹ¦£¬Ö»Óв»³¢ÊÔµÄʧ°Ü£¡
4Â¥2013-03-02 20:18:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yili_90

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï
Suzhipeng(zhtear99´ú·¢): ½ð±Ò+1, ¸ÐлÈÈÐÄÓ¦Öú~~ 2013-05-14 20:02:31
zhtear99: ½ð±Ò+2, ¸ÐлÈÈÐÄÓ¦Öú£¬Ð¡ºì°üһö~»¶Ó­³£À´~~ 2013-05-14 20:02:45
ÎÞЧͻ±ä£¨null mutation£©£ºµÈλ»ùÒòÓÉÓÚÆ¬¶ÎµÄȱʧ¡¢²åÈëÒÔ¼°ÖØÅŵÈÔ­ÒòʹÆä±àÂëµÄµ°°×ÖÊʧȥ¹¦ÄܵÄÍ»±ä¡£¼È¿ÉÒÔÊǵ¼ÖÂÎÞ·¨ºÏ³Éµ°°×ÖʵÄÍ»±ä£¬Ò²¿ÉÒÔÊÇ´Ù½øºÏ³ÉÎÞ¹¦Äܵ°°×ÖʵÄÍ»±ä
ÎÞЧͻ±äÌ壨null mutant£©£º·¢ÉúÎÞЧͻ±äµÄ¸öÌå
plummet
5Â¥2013-05-14 14:15:26
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yili_90

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÎÞЧµÈλ»ùÒò£ºÒ»ÖÖÍ»±äµÄÐÎʽ£¬Í»±äºóµÄ»ùÒò²»ÄÜÖ¸ÁîºÏ³ÉÓй¦Äܵĵ°°×ÖÊ.
plummet
6Â¥2013-05-14 14:18:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

 Äˆ?

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

Ժʿ

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

null mutation
(¿Õ°×Í»±ä»òÕßÎÞЧͻ±ä)£ºÄܹ»ÍêÈ«Ïû³ý»ùÒò¹¦ÄÜ£¬Í¨³£ÊÇÓÉÓÚ»ùÒòµÄÎïÀíɾ³ýµ¼Ö¡£
ÎÞЧͻ±äÓÉÓÚ´óÆ¬¶Î²åÈ롢ȱʧ»òÖØÅŶøµ¼Ö»ùÒò²úÎïÍêÈ«ÎÞЧ¡£
null:    adj. 1.ÎÞЧÁ¦µÄ£¬ÎÞÊø¸¿Á¦µÄ¡£ 2.ÎÞЧµÄ£¬ÎÞÓÃµÄ ...
mutation:    n. 1.±ä»¯,±äÒì,¸ü»»£»¡¾ÉúÎïѧ¡¿Í»±ä£»Í»±äÖÖ£»
Àý×ÓÈçÏÂ
1.Gene duplication is one of the most important factors that influence the evolution of genome size , the origination of novel gene , the genetic robustness against null mutations , the speciation , etc
ÕªÒª»ùÒòÖØ¸´ÊÇ»ùÒòͨ¹ý²»µÈ½»»»¡¢Äæ×ªÂ¼×ª×ù»òÈ«»ùÒò×éÖØ¸´µÈ;¾¶²úÉúÒ»¸öÓëÔ­»ùÒòÏàËÆµÄ»ùÒò»ò¼î»ùÐòÁС£
ÎÞЧͻ±äÌ壨null mutant£©£º·¢ÉúÎÞЧͻ±äµÄ¸öÌå
null allel  ÎÞЧµÈλ»ùÒò
for example:
    One DNA clone, RG365, did not hybridize to DNA from one of IR8 plants suggesting that this plant is a mutant with null allel for RG365 clone.  
    ÔÚIR8²»Í¬¸öÌåµÄ²â¶¨ÖУ¬·¢ÏÖÁËÒ»¸ö²»ÓëRG365±ê¼ÇDNAÔÓ½»µÄ¸öÌ壬¸Ã¸öÌå¿ÉÄÜÊÇȱÉÙRG365±ê¼ÇͬԴ˳ÐòµÄÍ»±äÌå¡£
ÎÒ¾ÍÊÇÎÒ
7Â¥2013-05-14 14:43:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
8Â¥2013-08-28 14:55:46
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ Suzhipeng µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 289Çóµ÷¼Á +4 ˶ÐǸ° 2026-03-23 4/200 2026-03-24 16:50 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] Ò»Ö¾Ô¸211 ³õÊÔ270·Ö Çóµ÷¼Á +5 ¹ÈÓêÉϰ¶ 2026-03-23 6/300 2026-03-24 16:32 by laoshidan
[¿¼²©] É격26Äê +4 °Ë6°Ë68 2026-03-19 4/200 2026-03-24 15:49 by СBenºÇºÇ
[¿¼ÑÐ] 085404µç×ÓÐÅÏ¢284·ÖÇóµ÷¼Á +4 13659058978 2026-03-24 4/200 2026-03-24 12:15 by syl20081243
[¿¼ÑÐ] 081700 µ÷¼Á 267·Ö +9 ÃÔÈ˵Ĺþ¹þ 2026-03-23 9/450 2026-03-24 11:58 by 544594351
[¿¼ÑÐ] 306Çó0703µ÷¼ÁÒ»Ö¾Ô¸»ªÖÐʦ·¶ +9 Ö½Óãly 2026-03-21 10/500 2026-03-24 11:36 by 544594351
[¿¼ÑÐ] ×ÊÔ´Óë»·¾³ µ÷¼ÁÉêÇë(333·Ö) +6 holy J 2026-03-21 6/300 2026-03-24 09:51 by hengsmith
[¿¼ÑÐ] 333Çóµ÷¼Á +6 87639 2026-03-21 10/500 2026-03-23 10:41 by Iveryant
[¿¼ÑÐ] 291Çóµ÷¼Á +5 ‹üÈA 2026-03-22 5/250 2026-03-23 09:20 by haoshis
[¿¼ÑÐ] 275Çóµ÷¼Á +6 shansx 2026-03-22 8/400 2026-03-22 15:27 by barlinike
[¿¼ÑÐ] 285Çóµ÷¼Á +6 ytter 2026-03-22 6/300 2026-03-22 12:09 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] ²ÄÁÏѧ˶301·ÖÇóµ÷¼Á +7 Liyouyumairs 2026-03-21 7/350 2026-03-21 22:31 by peike
[¿¼ÑÐ] Çóµ÷¼Á +3 13341 2026-03-20 3/150 2026-03-21 18:28 by ѧԱ8dgXkO
[¿¼ÑÐ] ²ÄÁÏѧ˶333Çóµ÷¼Á +3 ±±µÀÏï 2026-03-18 3/150 2026-03-21 18:17 by ѧԱ8dgXkO
[¿¼ÑÐ] Çóµ÷¼Á +3 Ma_xt 2026-03-17 3/150 2026-03-21 02:05 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖпƼ¼´óѧ£¬080502£¬354·ÖÇóµ÷¼Á +5 ÊØºòϦÑôCF 2026-03-18 5/250 2026-03-21 01:06 by JourneyLucky
[¿¼ÑÐ] 295Çóµ÷¼Á +4 Ò»Ö¾Ô¸¾©Çø211 2026-03-18 6/300 2026-03-20 23:41 by JourneyLucky
[¿¼ÑÐ] 294Çóµ÷¼Á²ÄÁÏÓ뻯¹¤×¨Ë¶ +15 ݤÎÉ­ÁÖ 2026-03-18 15/750 2026-03-20 23:28 by JourneyLucky
[¿¼ÑÐ] 330Çóµ÷¼Á +4 С²Ä»¯±¾¿Æ 2026-03-18 4/200 2026-03-20 23:13 by JourneyLucky
[¿¼ÑÐ] 0856µ÷¼Á£¬ÊÇѧУ¾ÍÈ¥ +8 sllhht 2026-03-19 9/450 2026-03-20 14:25 by ÎÞи¿É»÷111
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û