A researcher wants to clone a specific gene of interest. Why would he/she choose a viral vector for introducing the gene of interest into a host cell?

A. A viral vector contains its own metabolic machinery and does not affect the host cell.
B. A viral vector can infect living cells and take control of the host cell's metabolic machinery.
C. A viral vector is nonliving.
D. A viral vector contains circular DNA, thus it is easier to insert the gene of interest.
E. None of the choices are correct.


B. A viral vector can infect living cells and take control of the host cell's metabolic machinery.

Biology & Microbiology

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a. cytokinin b. salicylic acid c. abscisic acid d. ethylene e. gibberellin

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As membrane permeability increases, the rate of water movement into the osmometer ________

a. increases. b. decreases. c. is unaffected.

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Fungi are the primary decomposers in ecosystems

What will be an ideal response?

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When microbes share a habitat, with each providing a necessary nutrient for the other, the relationship is called

A. antagonism. B. antibiosis. C. satellitism. D. syntrophy. E. autotrophy.

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