Which of the following statements is correct regarding RNA?
A) Messenger RNA, transfer RNA, and ribosomal RNA play a role in protein synthesis.
B) If the base sequence of DNA is ATTGCA, the messenger RNA template will be UCCAGU.
C) There is exactly one specific type of mRNA for each amino acid.
D) rRNA is always attached to the rough ER.
A) Messenger RNA, transfer RNA, and ribosomal RNA play a role in protein synthesis.
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A scientist observes a particular nerve fiber that is among the fastest at conducting action potentials in the body. Which of the following best describes its likely structure?
A. Large diameter and myelinated B. Large diameter and unmyelinated C. Small diameter and myelinated D. Small diameter and unmyelinated
The spinal nerves that give rise to the sacral plexus are
A. L4-S4. B. T11-Co1. C. L2-S1. D. S4-C2.
Which of the following is an accurate statement regarding multiple organ dysfunction system?
a. It has a mortality rate of 5% to 50% b. It involves four or more organ systems c. It is an uncommon cause of death in the ICU setting d. It is often caused by sepsis
Which of the following is not involved with spinal gating of pain signals?
A) Lower motor neurons B) The spinothalamic tract C) Second-order neurons D) The reticulospinal tract E) Nociceptors