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fragile x syndromes中文是什么意思

  • 《英文msh词典》Fragile X Syndromes
  • [入口词] Fragile X Syndromes
  • [主题词] Fragile X Syndrome
  • [英文释义] A condition characterized genotypically by mutation of the distal end of the long arm of the X chromosome (at gene loci FRAXA or FRAXE) and phenotypically by cognitive impairment,hyperactivity,SEIZURES,language delay,and enlargement of the ears,head,and testes. MENTAL RETARDATION occurs in nearly all males and roughly 50% of females with the full mutation of FRAXA. (From Menkes,Textbook of Child Neurology,5th ed,p226)

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  • 例句与用法
  • The screnning and prenatal gene dignosis for fragile x syndrome using pfu dna
    综合征的筛查和产前基因诊断
  • fragile x syndrome ( fxs ) is the most common form of inherited mental retardation after down syndrome . it affects approximately 1 in 4000 males and 1 in 8000 females in the general population
    脆性x综合征(fragilexsyndrome,fxs)是导致遗传性智力低下的主要原因之一,发病率仅次于先天愚型,在男性中的发病率约为1/4000,在女性中发病率约为1/8000。
  • To detect the patients and carriers of the fragile x syndrome, various analytic methods could be used . one is cytogenetic diagnosis to observe the expression of the fragile site fraxa located at xq27.3
    对脆x综合征的诊断,可以通过细胞遗传学方法观察分析x染色体相应脆性位点的表达情况,或是通过southern印迹杂交的方法直接分析cgg重复的扩增突变。
  • The absence of the fmr1 gene product, fragile x mental retardation protein ( fmrp ), is believed to be responsible for the typical physical and mental characteristics of the fragile x syndrome . alleles with between 43 and 200 cgg repeats are called permutation . they are generally unmethylated with normal transcript and protein level, but are extremely unstable during transmission to next generation
    带有前突变(n=43200)的个体其fmr1基因通常不会甲基化,可以正常转录和翻译产生fmrp,故没有临床表型出现,但是,在向下一代传递的过程中却是非常不稳定的,会从前突变扩增成为全突变。
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Last modified time:Sun, 10 Aug 2025 00:29:56 GMT

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