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dna 短語和例子DNA =1.deoxyribonucleic...

dna fingerprint

We need a comprehensive assessment of the recombinant dna issue, preferably under the auspices of the federal government . 對于重組體DNA問題,我們需要有一個全面的估價,而且最好由聯邦政府主辦。

Transposable elements, or insertion elements, are dna sequences which can be inserted into many different sites in chromosomes . 轉位因子或插入因子是能夠插入到染色體不同位點的DNA序列。

they gently heated the “hybrid“ / dna to separate the strands(this is called thermal denaturation). 他們還將“雜合”DNA分子緩慢加熱(這叫加熱變性)

We presented the history of recombinant dna research and our guidelines, and invited the committee's opinions . 我們介紹了重組體DNA的歷史和我們的準則,并征求這個委員會的意見。

Transformation efficiency is greatest with circular plasmids containing only small inserts of passenger dna . 使用帶有一小段客座DNA的插入序列的環狀質粒進行轉化,較率會最高。

Nucleotide sequences homologous to oncornaviruses dna products have been observed in human leukaemic cells . 在人白血病細胞中,已經觀察到與腫瘤毒病DNA產物相同的核苷酸序列。

Plasmids are exta-chromosomal doublestranded, circular dna molecules found in prokaryotic and eukaryotic cells . 質粒是在原核和真核細胞中發現的染色體外的雙鏈環狀DNA分子。

Some success in interferon production by bacteria has recently been achieved by the recombinant dna technique . 近年曾經應用重組DNA技術使細菌產生干擾素獲得了一定成效。

An outline of the procedure for introducing a piece of foreign dna into a cloning vector is shown in figure 1. 3 . 圖13列出了引出一段外源DNA進入克隆載體的大概步驟。

This increased optical density caused by a disassociation or melting of the dna is called hyperchromicity . 這種由于DNA離解或融解引起的光密度增加,稱之為增色效應。

Superpure dna can be prepared using rna transcribed from dna in the course of gene expression . 在基因表達期間,使用從DNA轉錄而來的RNA可制備出超純度的DNA

These are replicated individually in bacterial cells to produce a library of different dna clones . 它們各自在細菌細胞內復制,產生不同的DNA克隆的“文庫”。

The committee recommended that recombination dna work at princeton be considered in this same light . 委員會建議用同樣的觀點來考慮在普林斯頓的DNA重組工作。

It remains to be seen if the genes for these proteins are located on the s-1, s-2 and s-2 dnas . 有待闡明的是這些蛋白質的基因是否都在S1和S2DNAS上。

For example, fragments resembling dna from cancer-causing viruses might be removed and destroyed . 例如,可能除掉或破壞類似來源于致癌病毒的DNA片段。

The template specificities found with dna polymerases from human leucocytes is summarized in table 1 . 人的白血病DNA聚合酶的模板特異性簡列于表1。

The template specificities found with dna polymerases from human leucocytes is summarized in table 1 . 人白血病DNA聚合酶的模板特異性簡列于表1中。

The holoenzyme recognizes specific nucleotide sequences on the dna duplex(promoters) . 全酶還能識別DNA雙鏈分子上的特定核苷酸序列(起動基因)。

The structure of dna and its functions of replication and transcription are compatible . DNA的結構與它所擔負的復制和轉錄的功能是協調一致的。