The language of notices should be concise and clear.()
The language of notices should be concise and clear.()
The language of notices should be concise and clear.()
"Mr、Green is likely ______about this meeting、Why hasn't he come?"
A、to notify
B、to be notified
C、to have been notified
D、to be notifying
From the text we learn that the '68 War was best characterized by ______.
A.irrational notions.
B.global breakthroughs.
C.violent clashes.
D.personal tragedies.
If someone calls me, ask him or her to leave a ______ .
A、message
B、letter
C、sentence
D、notice
假如你要用原核表达载体pET28a质粒表达一个蛋白,该蛋白的基因CDS如下: >ORF ATGAACGCTACACACTGCATCTTGGCTTTGCAGCTCTTCCTCATGGCTGTTTCTGGCTGTTACTGCCACGTGTTGCCGGAATTCAGCCTCAGGAAGCGGAAAAGGAGTCGCTGCTGA 酶切位点分析可以用DNAMAN,或在线网址:http://nc2.neb.com/NEBcutter2/index.php 通过在PCR引物5’端加入酶切位点,扩增该片段后,PCR产物经双酶切接入pET28a载体的BamHI到XhoI之间的单克隆位点(MCS)区,载体MCS区序列如下:在设计PCR引物时,上下游引物5’ 端分别加入的酶切位点是SalI 和NotI,为保证表达蛋白序列不移码,在酶切位点后理论上可以加入()
A、1个碱基
B、2个碱基
C、3个碱基
D、4个碱基
E、5个碱基
F、6个碱基
假如你要用原核表达载体pET28a质粒表达一个蛋白,该蛋白的基因CDS如下: >ORF ATGAACGCTACACACTGCATCTTGGCTTTGCAGCTCTTCCTCATGGCTGTTTCTGGCTGTTACTGCCACGTGTTGCCGGAATTCAGCCTCAGGAAGCGGAAAAGGAGTCGCTGCTGA 酶切位点分析可以用DNAMAN,或在线网址:http://nc2.neb.com/NEBcutter2/index.php 通过在PCR引物5’端加入酶切位点,扩增该片段后,PCR产物经双酶切接入pET28a载体的BamHI到XhoI之间的单克隆位点(MCS)区,载体MCS区序列如下:在设计PCR引物时,如果上游选用BamHI,下游引物5’ 端可以加入酶切位点有()
A、BamHI
B、EcoRI
C、SacI
D、SalI
E、HindIII
F、NotI
G、XhoI
假如你要用原核表达载体pET28a质粒表达一个蛋白,该蛋白的基因CDS如下: >ORF ATGAACGCTACACACTGCATCTTGGCTTTGCAGCTCTTCCTCATGGCTGTTTCTGGCTGTTACTGCCACGTGTTGCCGGAATTCAGCCTCAGGAAGCGGAAAAGGAGTCGCTGCTGA 酶切位点分析可以用DNAMAN,或在线网址:http://nc2.neb.com/NEBcutter2/index.php 通过在PCR引物5’端加入酶切位点,扩增该片段后,PCR产物经双酶切接入pET28a载体的BamHI到XhoI之间的单克隆位点(MCS)区,载体MCS区序列如下:在设计PCR引物时,如果下游引物5’ 端加入的酶切位点是XhoI,上游引物5’ 端可以加入酶切位点有()
A、BamHI
B、EcoRI
C、SacI
D、Sal I
E、HindIII
F、NotI
Now, English is used as the first language and official language in Singapore.()
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