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.

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

Growth is an example of a ____ process. 

A. metabolic B. generative C. responsive D. control

Biology & Microbiology

The procedure for culturing a microorganism requires the use of a microscope.

Answer the following statement true (T) or false (F)

Biology & Microbiology