The antimicrobial polymyxin
A) inhibits protein synthesis.
B) inhibits nucleic acid synthesis.
C) blocks a metabolic pathway.
D) disrupts cytoplasmic membranes.
E) inhibits cell wall synthesis.
D
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Is it possible to be a "carrier" (phenotypically normal but capable of passing the allele to one's offspring) for cystic fibrosis?
a. Yes b. No
You are researching the adaptations of a newly discovered mammal that is active mostly at night. Which adaptation to the eye would you expect to find?
A) A reflective choroid behind the retina B) Thicker vitreous humor behind the lens C) Crustacean flattened cornea resulting in farsightedness D) Many individual light-sensitive subunits in each eye E) An eyespot that can only discern light from dark
Which of the following statements about drugs that competitively inhibit DNA polymerase or RNA polymerase is FALSE?
A) They can potentially cause mutations. B) They are used against viral infections. C) They can affect host cell DNA synthesis. D) They cause cellular plasmolysis. E) They interfere with protein synthesis.
What is a riboswitch?
What will be an ideal response?