Failure to refrigerate a urine culture specimen when a long time will elapse between specimen collection and delivery to the laboratory is most apt to result in:
A) an abnormally high colony count
B) an abnormally low white blood cell count
C) contamination of the specimen by members of the patient's indigenous microflora
D) death of the pathogen
A) an abnormally high colony count
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All of the following are roles of microfilaments except
A) mitotic spindle formation. B) muscle cell contraction. C) amoeboid movement. D) cytoplasmic streaming. E) cell migration.
What is one characteristic that archaea and eukaryotes share?
a. horizontal gene transfer b. chemoautotrophs c. organize DNA around histone proteins d. multiple plasmids e. similar cell wall components
Molting in crustaceans is controlled by
a. ecdysone. b. the X organ. c. MIH. d. the Y organ. e. all of these.
The flow of information in a cell proceeds in what sequence?
A. from DNA to protein to RNA B. from RNA to DNA to protein C. from DNA to RNA to protein D. from protein to RNA to DNA E. from RNA to protein to DNA