题目内容

Many plasmid vector used in gene engineering have the resistance gene of antibiotics, it is convenient for ( )

A. exogenous gene be inserted into plasmid
B. biology reproduction of host bacteria
C. transformation of plasmid
D. expression of target gene
E. screen the host bacteria harboring target gene

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which is wrong about the description of PCR ( )

A. is an enzymatic -reaction
B. specificity of PCR amplification is determined by primer
C. amplification object is DNA sequence
D. amplification object is amino acid sequence
E. Taq DNA pol is needed

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which does easily appear in PCR technology ()

A. false-negative result
B. false-positive result
C. lower sensitivity
D. not widely be applied
E. operation complicate

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In clinical gene therapy, the most common gene delivery vehicles is ()

A. bacteriophage
B. virus
C. liposome
D. plasmid
E. yeast artificial chromosome

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At present, gene therapy cannot be practiced with ( )

A. tumor cells
B. germ cells
C. fibroblasts
D. lymphocytes
E. hematopoietic cells

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Many plasmid vector used in gene engineering have the resistance gene of antibiotics, it is convenient for ( )

A. exogenous gene be inserted into plasmid B. biology reproduction of host bacteria C. transformation of plasmid D. expression of target gene E. screen the host bacteria harboring target gene

which is wrong about the description of PCR ( )

which does easily appear in PCR technology ()

In clinical gene therapy, the most common gene delivery vehicles is ()

At present, gene therapy cannot be practiced with ( )

A. exogenous gene be inserted into plasmid
B. biology reproduction of host bacteria
C. transformation of plasmid
D. expression of target gene
E. screen the host bacteria harboring target gene