What determines how a regulatory molecule influences its target cell?
A. Size and polarity
B. Solubility and size
C. Polarity, solubility, and size
D. Polarity and solubility
Answer: D
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Some muscles are named according to the orientation of their fibers.
Answer the following statement true (T) or false (F)
______ determines which B-cell is cloned in an antibody-mediated response
A. The antibody B. The antigen C. A macrophage D. Complement E. A neutrophil
Which muscle tissue contains fibers with multiple nuclei?
A. Smooth muscle B. Visceral muscle C. Skeletal muscle D. Involuntary muscle E. Cardiac muscle
Match each nitrogenous base with its description.
cytosine - adenine - thymine - guanine pyrimidine that binds with adenine - purine that binds with thymine - pyrimidine that binds with guanine - purine that binds with cytosine