The nurse is reviewing the function of DNA and RNA with a group of students. Which structure should the nurse explain as providing the genetic code for a gene?
a. Cell
b. Protein
c. Piece of DNA
d. Piece of RNA
ANS: B
B. Specific regions of DNA are called genes; a gene is the code for one protein. The genetic code of DNA is the code for the amino acid sequences needed to synthesize a cell's proteins. C. A complimentary copy of the DNA's gene is made by a molecule called messenger RNA (mRNA). A. The mRNA then moves to the cytoplasm of the cell and attaches to the ribosomes. D. Transfer RNA (tRNA) molecules bring the necessary amino acids to the proper places on the mRNA molecule, and enzymes of the ribosomes catalyze the formation of peptide bonds to link the amino acids into the primary structure of a protein.
You might also like to view...
Which group is not a major information technology research firm?
a. Forrester b. Gartner c. HIMSS d. KLAS
When working with a patient who is being placed on an air mattress/overlay, the nurse should:
a. apply the preinflated overlay over the standard mattress. b. bring any plastic strips or flaps around the corners of the bed mattress. c. administer an analgesic after the patient is moved onto the mattress. d. keep clamps or pins attached to the sheets to keep them in place over the mattress.
A woman complains of pain with intercourse. What client medications should the nurse check for that contribute to dyspareunia?
A) Antihistamines B) Calcium supplements C) Antibiotics D) Antihypertensives
Which clinical trial phase includes 20-100 individuals and tests for safety?
a. Phase I b. Phase II c. Phase III d. Phase IV