第二胎位 的英文怎麼說

中文拼音 [èrtāiwèi]
第二胎位 英文
second position
  • : Ⅰ助詞(用在整數的數詞前 表示次序) auxiliary word for ordinal numbers Ⅱ名詞1 [書面語] (科第) gr...
  • : Ⅰ數詞(一加一后所得) two Ⅱ形容詞(兩樣) different
  • : 名詞1 (幼體) foetus; embryo 2 (懷孕或生育的次數) birth 3 (衣服、被褥等的面子和裡子之間的襯物...
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • 第二 : 1. (序數) second 2. (姓氏) a surname
  1. This expression vector plbcas - hsa - lgl has the following advantages : i ) the 1. 7kb promoter is able to drive cell - specific and hormone - dependent expression ; ii ) the inclusion of intron - 1 can increase expression level of fusion genes ; iii ) the 5 ' utr of bovine p - casein mrna may have a positive role in both transcriptional and post - transcriptional regulation ; iv ) the gfp gene make the selection of positive clone among embryos possible ; v ) the gfp gene can be easily excised via cre - mediated recombination between the two loxp sites after the expression vector has been integrated into chromosome ; vi ) the two incompatible lox sites, loxp and lox2272, would facilitate cre - recombinase mediated cassette exchange ( rmce ), which in theory will leading to develop a technology of site - specific gene expression in animal mammary glands

    該載體的特點是:具有可以調控外源基因在乳腺中特異表達的牛-酪蛋白基因5 `端側翼區和包括一外顯子及內含子在內的5 `端調控區;將人血清白蛋白cdna準確地置於牛-酪蛋白基因外顯子中的翻譯起始密碼子atg之後,而且沒有增加額外的序列和使人血清白蛋白cdna移碼;引入標記基因gfp ,便於在胚期鑒定陽性胚,減少受體;引入cre lox重組系統: ( ? )標記基因gfp的兩端的兩個loxp點可以在表達載體整合到基因組后,刪除標記基因; ( ? )餘下的一個loxp點可以和前面的lox2272點組成cre重組酶介導的盒式交換系統。
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