题目内容

一部反映19世纪末期中国某富商家族兴衰历史的电视剧正在热播,剧中有这样几组镜头,其中与史实不符的是()

A. 镜头一:商人到日本人在苏州开设的工厂谈生意
B. 镜头二:商人的儿子在《申报》报社当记者
C. 镜头三:商人正在读《新青年》,了解新闻时事
D. 镜头四:商人家住北京东交民巷

查看答案
更多问题

关于商务印书馆以下信息错误的是( )

A. 它创办于1987年
B. 在近代历史上它出版了很多课本和字典
C. 它创办于上海
D. 它是近代中国历史最长、规模最大的文化出版机构

Whichofthefollowingstatementsabouttheviralvectorsforgenetherapyiswrong?

Anumberofviruseshavebeenusedforhumangenetherapy,includingretroviruses,adenoviruses,herpessimplex,vaccinia, and adeno-associatedvirus.
B. Inordertoreplicate,virusesneverintroducetheirgeneticmaterialintothehostcell,trickingthehost'scellularmachineryintousingitasblueprintsforviralproteins.
C. Retrovirusesgoastagefurtherbyhavingtheirgeneticmaterialcopiedintothegenomeofthehostcell.
D. Likethegeneticmaterial(DNAorRNA)inviruses,therapeuticDNAcanbedesignedtosimplyserveasatemporaryblueprintthatisdegradednaturallyor(atleasttheoretically)toenterthehost'sgenome,becomingapermanentpartofthehost'sDNAininfectedcells.

Whichofthefollowingstatementsaboutthenon-viralvectorsforgenetherapyiswrong?

A. Non-viralmethodspresentcertainadvantagesoverviralmethods,suchaslargescaleproduction&lesssafetyconcerns.
B. Methodsfornon-viralgenetherapyincludetheinjectionofnakedDNA,electroporation,thegenegun,sonoporation,magnetofection,theuseofoligonucleotides,lipoplexes,dendrimers,&inorganicnanoparticles.
C. Non-viralmethodsoftenproducehighlevelsoftransfectionandgeneexpression,&thusincreasetherapeuticefficacy.
D. Generallynon-viralmethodshavealowhostimmunogenicity.

Which of the following viruses is the most commonly used vector in gene therapy?

A. nakes plasmid
B. adenovirus
C. retrovirus
D. adeno-associated virus (AAV)

答案查题题库