_______________ uses uracil as a substrate.
a) DNA Polymerase III
b) Peptidyl transferase
c) Aminoacyl-tRNA synthase
d) RNA Polymerase
Ans: d) RNA Polymerase
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Cyclosporin A
A. is a relatively general immunosuppressive agent. B. suppresses T cell proliferation. C. activates macrophages. D. stimulates antibody production. E. is a relatively general immunosuppressive agent AND suppresses T cell proliferation.
Bull dogs have been bred to have such a large head size that they can no longer give birth naturally. The process by
which these dogs changed over time is called ____.
a. artificial breeding b. artificial selection c. artificial evolution d. artificial engineering e. artificial insemination
Some resident intertidal fish include all the following except
a. rock eels. b. lamprey eels. c. gobies. d. sculpins. e. blennies.
Fats composed of fatty acids that have double bonds in the fatty acids and have fewer than the maximum number of hydrogen atoms are:
A. saturated B. made of glycerol plus two fatty acids C. liquids at room temperature D. solid at room temperature E. generally found in animal fats