In recombinant DNA technology, plasmids may be used to:
A. introduce foreign DNA into bacteria
B. cut DNA at a specific location
C. introduce foreign DNA into human cells
D. activate restriction enzymes
Ans: A. introduce foreign DNA into bacteria
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Clarice, a dental hygienist, knows she cannot work on a patient with an infected oral cavity. A quick and effective way to determine whether an infection in the mouth exists is to feel for swollen ________ below the jaw
Fill in the blank(s) with correct word
There is a strong correlation between stress and susceptibility to colds. What does this mean?
A) Stress must directly cause susceptibility to colds. B) A high susceptibility to colds must directly cause stress. C) People with high stress must come into contact with more cold viruses. D) Stress might or might not affect susceptibility to colds.
The structural framework in a cell is the
a. extracellular matrix. b. endoplasmic reticulum (ER). c. cytoskeleton. d. plasma membrane. e. endomembrane system
What carries instructions for making proteins from the nucleus into the cytoplasm?
a. ATP b. ribosomes c. DNA d. Rough ER e. mRNA