In eukaryotic cells, the sequences of mRNA that are removed from an mRNA molecule before being translated are
A. exons.
B. anticodons.
C. proteomes.
D. terminators.
E. introns.
E. introns.
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What is the risk associated with amateur mushroom hunting?
a. mycotoxicosis b. ringworm c. mycetismus d. histoplasmosis
An example of a poison that kills by interfering with ATP production is
A. arsenic. B. carbon monoxide. C. cyanide. D. rotenone. E. All of the answer choices are correct.
When Peter Agre and colleagues compared frog oocytes expressing aquaporin with control oocytes lacking aquaporin placed in pure water, they found that
A) the control oocytes lacking aquaporin swelled and burst as water was transported into the cells. B) the oocytes expressing aquaporin swelled and burst as water was transported into the cells. C) the oocytes expressing aquaporin collapsed as water was transported out of the cells. D) the oocytes expressing aquaporin first swelled and then collapsed as water was transported into and then back out of the cells. E) the oocytes expressing aquaporin first collapsed and then swelled as water was transported out and then back into the cells.
Creating conditions in the laboratory that promote the growth of some microbes while inhibiting the growth of others is called
A) complex culturing. B) reducing conditions. C) enrichment culturing. D) transport conditions. E) differential culturing.