沒有記載的起源 的英文怎麼說
中文拼音 [mòyǒujìzǎideqǐyuán]
沒有記載的起源
英文
unrecorded beginnings- 沒 : 沒Ⅰ動詞1 (沉下或沉沒) sink; submerge 2 (漫過或高過) overflow; rise beyond 3 (隱藏;隱沒) hid...
- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 記 : Ⅰ動詞1 (把印象保持在腦子里) remember; bear in mind; commit to memory 2 (記錄; 記載;登記) writ...
- 載 : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
- 的 : 4次方是 The fourth power of 2 is direction
- 起 : 起Ⅰ動詞1 (站起; 坐起) rise; get up; stand up 2 (取出; 取走) draw out; remove; extract; pull 3...
- 源 : 名詞1. (水流起頭的地方) source (of a river); fountainhead 2. (來源) source; cause 3. (姓氏) a surname
- 沒有 : 1 (無) not have; there is not; be without 2 (不及; 不如) not so as 3 (不到) less than 4 (...
- 記載 : 1. (寫下來) put down in writing; record 2. (記事的文章) record; account
- 起源 : 1 (根源) origin; beginning; derivation; rise in 2 (開始發生) originate from; originate in; st...
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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 `端側翼區和包括第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-酪蛋白基因第二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 ,便於在胚胎期鑒定陽性胚胎,減少受體;引入cre lox重組系統: ( ? )標記基因gfp的兩端的兩個loxp位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位點可以和前面的lox2272位點組成cre重組酶介導的盒式交換系統。Jean kearney, a spokeswoman for the festival, said there were many wildly inventive legends about how it began but no written record of the first event. " it has been suggested that it is linked to pre - christian celebrations of a fruitful harvest and that the male goat or " puck " was a pagan symbol of fertility, like the pagan god pan.
「搞怪節」的發言人瓊卡尼說,有關「搞怪節」的起源有眾多的說法,但其確切起源並沒有文字記載。卡尼介紹說: 「這個節日可能與慶祝農作物豐收有關,而公山羊被認為是多產的象徵。 」
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