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spontaneous mutations meaning in English

自发突变:不用化学活物理诱变剂而引起的突变。

Examples

  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。

Related Words

  1. spontaneous liquefaction
  2. spontaneous polorization
  3. spontaneous religion
  4. spontaneous abortion
  5. spontaneous behaviour
  6. spontaneous creaming
  7. spontaneous delivery
  8. spontaneous annealing
  9. spontaneous fire
  10. spontaneous mutation
  11. spontaneous mutation
  12. spontaneous mutation rate
  13. spontaneous myelitis
  14. spontaneous myoglobinuria
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