Which of the following has episomal DNA inserted in the cell's chromosome?
A) An F+ cell
B) An F' plasmid
C) An Hfr cell
D) An F- cell
E) All except D
C
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The genes of the human leukocyte antigens (HLA) system encode cell surface
A) phospholipids. B) glycolipids. C) glycoproteins. D) histamines.
In flatworms and sea anemones, circulation of
solutes and gases is by way of
a. interstitial fluid diffusion. b. an open circulatory system. c. a closed circulatory system. d. cell to cell transport. e. intracellular diffusion.
A pedigree of an autosomal dominant trait will likely show all of the following characteristics EXCEPT:
a) Skipping of a generation b) Equal numbers of males and females affected c) Unaffected individuals do not pass on the trait d) 1/2 of the offspring of an affected individual are usually predicted to have the trait
What is a stent?
A. a treatment to lower blood pressure B. a cylinder of expandable metal mesh C. time spent in recovery after coronary bypass surgery D. an instrument that regulates the heartbeat E. a treatment for phlebitis