题目内容

Which gene transfer is associated with transformation?

A. Bacteriophage infection,
B. uptake of free DNA fragment.
Connection via sex pilli,
D. formation of prophage

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Which type of gene transfer is associated with conjugation?

A. Bacteriophage infection,
B. uptake of free DNA fagment.
Connection via sex pilli,
D. formation of prophage

Which gene transfer is associated with specialized transduction?

A. Lytic bacteriophage infection,
B. uptake of free DNA fagment.
Connection via sex pili,
D. prophage excision.

Which gene transfer is associated with generalized transduction?

A. Lytic bacteriophage infection,
B. uptake of free DNA fagment.
Connection via sex pili,
D. prophage excision.

Although two cells are totally unrelated, one cell receives DNA from the other cell and incorporates this new DNA into its chromosome. This process is _____.

A. crossing over of DNA from the two cells
B. vertical gene transfer
C. horizontal gene transfer
D. transposition

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