The activation of enzymes by the removal of a
portion of polypeptide chain is an example of
a. transcriptional control.
b. transcript processing control.
c. transport control.
d. translational control.
e. post-translational control.
Answer: e
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The swinging from one arm to the other with the body dangling below is
A. "knuckle walking." B. bipedalism. C. All of the answer choices are correct. D. brachiation. E. quatrapedalism.
Which statement is false about intact neurons?
a. An action potential can be generated in an input zone only. b. A trigger zone has enough sodium gates to initiate an action potential. c. Each portion of a membrane has its own recovery time. d. The potassium gates open during the recovery period. e. Gated sodium channels are inactivated during the recovery period.
Nutritional mutants in Neurospora can be "cured" by treating the medium with substances in the defective metabolic pathway. What determines whether the mutant strain (auxotroph) is "cured" by a particular substance?
What will be an ideal response?
Which of the following does not contain a heavy metal?
A. mercurochrome B. zinc C. merthiolate D. silver nitrate solutions E. tincture of iodine