English translation for "spontaneous mutations"

自发突变：不用化学活物理诱变剂而引起的突变。

Related Translations:

spontaneous liquefaction:  自发液化自然液化

spontaneous polorization:  自发极化法

spontaneous religion:  自发宗教

spontaneous abortion:  胎自堕自发龙自发性流产自然流产

spontaneous behaviour:  自发行为

spontaneous creaming:  自然膏化

spontaneous delivery:  顺产自动分娩,自然分娩自然分娩

spontaneous annealing:  自热退火自行退火

spontaneous fire:  自然火自燃

spontaneous mutation:  (自发突变)：无任何诱变剂加入时发生的突变。自然突变

Example Sentences:

	1.	" the older the mother , the more likely she has acquired spontaneous mutations in [ her chromosomes ] , " and will transmit them at conception , wigler said 母亲的年纪越大，比较可能得到染色体上的自发性突变，然后经由受孕转移给下一代。
	2.	In our laboratory , a unique mutation detection system using a shuttle vector plasmid has been established to demonstrate that a low concentration of mnng ( 0 . 2 m ) can induce nontargeted mutation in mammalian cells : the mammalian cells were exposed to 0 . 2m mnng for 2 . 5h , then a shuttle plasmid pz189 carrying supf trna gene was transfected into cells after 24h culture . we found a 5 - fold higher mutation frequency of the plasmid replicated in pretreated cells than the spontaneous mutation frequency of the plasmid replicated in control cells . this kind of mutation did not occur immediately after mnng exposure 我们实验室曾用一特殊的突变检测系统，直接证明dna损伤剂可在哺乳动物细胞诱发非定标性突变：首先用低浓度( 0 . 2 m )的短寿烷化剂mnng (半寿期为1 . 1hr )处理细胞2 . 5h后，继续培养24h ，将重组有用作突变检测的靶基因supftrna基因的穿梭质粒pz189转入细胞复制，发现在未受致癌物直接攻击的穿梭质粒中有较自发突变率高5倍以上的靶基因突变。

Similar Words：

"spontaneous motor activity" English translation, "spontaneous movement" English translation, "spontaneous mutant" English translation, "spontaneous mutation" English translation, "spontaneous mutation rate" English translation, "spontaneous myelitis" English translation, "spontaneous myoglobinuria" English translation, "spontaneous nuclear fission" English translation, "spontaneous nuclear radioactive decay" English translation, "spontaneous nuclear reaction" English translation