In recombinant DNA methods, the term vector can refer to
A、the sticky end of a DNA fragment
B、a bacteria
C、a plasmid used to transfer DNA into a living cell
D、a DNA probe used to identify a particular gene
A、the sticky end of a DNA fragment
B、a bacteria
C、a plasmid used to transfer DNA into a living cell
D、a DNA probe used to identify a particular gene
Refer to Figure 4-3. All else equal, an increase in the income of buyers who consider turkey to be an inferior good would cause a move from
A、DA to DB.
B、DB to DA.
C、x to y.
D、y to x.
A、the customary practice
B、the amount of the order
C、the low profit gained from the transaction
D、the inconvenience caused by such a payment proposal
A、trademark
B、amortization
C、goodwill
D、matching
A. Yoga can induce a feeling of well-being.
B. Yoga can be a powerful adjunct therapy.
C. Yoga can prevent lifestyle. diseases.
D. Yoga becomes more and more popular.
A、Accuracy, brevity and clarity.
B、Accuracy, briefness and coherence.
C、Accuracy, brevity and cohesion.
D、Accuracy, briefness and clarity.
A、argument
B、links
C、claim
D、evidence
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