Shigella and cholera toxin both
A. have an A-B arrangement.
B. work through ADP ribosylation.
C. increase cAMP levels.
D. prevent protein synthesis.
A.
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Grafting is used to grow all varieties of edible apples. What does grafting involve?
a. repairing a damaged stem of a plant to continue its growth b. inducing polyploidy in plants c. growing new roots and shoots from extensions of a parent plant d. inducing a cutting from one plant to fuse with the tissues of another plant e. artificially inducing individual cells to divide and form an embryo
Which structure associated with the human heart contains oxygen-rich blood?
a. right atrium b. right ventricle c. pulmonary artery d. aorta e. superior vena cava
Growth is an example of a ____ process.
A. metabolic B. generative C. responsive D. control
The procedure for culturing a microorganism requires the use of a microscope.
Answer the following statement true (T) or false (F)