You work for a pharmaceutical company that designs small RNAs, used to control expression of disease genes. The primary focus area of your research should be
A. translational activation.
B. transcriptional repression.
C. transcriptional activation.
D. translational repression.
Answer: D
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Culture-independent approaches avoid issues associated with
A) detecting very rare phylotypes. B) conflating phylogenetic and functional diversity. C) growing organisms in the lab. D) next generation sequencing.
Rods and cones, like most sensory receptors, depolarize open receiving a stimulus.
Answer the following statement true (T) or false (F)
Indicator bacteria for contaminated water are ________.
A. staphylococci B. all bacteria C. coliforms D. Clostridia
Vibrio cholerae usually exists in a harmless form until
A. a bacteriophage introduces a gene that codes for the botulism toxin. B. the lytic cycle destroys the host cells. C. a bacteriophage introduces a gene that codes for the cholera toxin. D. mutations cause the normal proteins to form a toxin causing cholera.