Which of the following types of RNA contains regions that act as a switch to turn protein synthesis on and off for the protein they code for?
A)microRNA
B)riboswitches
C)antisense RNA
D)tRNA
B)riboswitches
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Most brain tumors originate from which of the following?
A. Neuroglial cells B. Sensory neurons C. Multipolar neurons D. Somatic motor neurons E. Bipolar neurons
Which test tubes were used to determine the optimal pH for lipase activity?
A) tubes 2, 3, and 4 B) tubes 1, 2, and 3 C) tubes 2, 5, and 6 D) tubes 1, 5, and 6
This part of the neuron generates and conducts action potentials
A) cell body B) axon C) dendrite
Corticosteroid use for a spinal cord injury may lead to significant complications, particularly if:
A) the patient is younger than 45 years of age. B) it is initiated less than 3 hours after the injury. C) the patient is also taking beta-blocker medications. D) the injury is accompanied by penetrating trauma.