amplificative valve: 放大氣閥amplificator: [網(wǎng)絡(luò)] 放大器 amplifications: n. [電子] 放大(率);擴(kuò)大;詳述 amplificatory: a. 放大的 amplification-factor: 放大系數(shù);[電子] 放大因數(shù) amplificon: [網(wǎng)絡(luò)] 放大倍數(shù) amplification,gene: 《英文msh詞典》Amplification,Gene ; [入口詞] Amplification,Gene ; [主題詞] Gene Amplification ; [英文釋義] A selective increase in the number of copies of a gene coding for a specific protein without a proportional increase in other genes. It occurs naturally via the excision of a copy of the repeating sequence from the chromosome and its extrachromosomal replication in a plasmid,or via the production of an RNA transcript of the entire repeating sequence of ribosomal RNA followed by the reverse transcription of the molecule to produce an additional copy of the original DNA sequence. Laboratory techniques have been introduced for inducing disproportional replication by unequal crossing over,uptake of DNA from lysed cells,or generation of extrachromosomal sequences from rolling circle replication. amplificons: [網(wǎng)絡(luò)] 放大器 amplification, parametric: [電學(xué)] 放大、參數(shù)的 amplified a.v.c.: [網(wǎng)絡(luò)] 放大式自動音量控制 amplification techniques,rna: 《英文msh詞典》Amplification Techniques,RNA ; [入口詞] Amplification Techniques,RNA ; [主題詞] Nucleic Acid Amplification Techniques ; [英文釋義] Laboratory techniques that involve the in-vitro synthesis of many copies of DNA or RNA from one orginal template.