What enzyme catalyzes the attachment of amino acids to tRNA molecules?
A. helicase
B. topoisomerase
C. aminoacyl-tRNA synthetase
D. ribosome
E. translation factor
C. aminoacyl-tRNA synthetase
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A new antibiotic has been developed that inhibits the activity of an enzyme by competitive inhibition. What effect will this have on the activation energy of the enzyme-catalyzed reaction?
A. The activation energy required for the reaction in the presence of the antibiotic would be greater than the activation energy required in the absence of the antibiotic B. The activation energy required for the reaction in the presence of the antibiotic would be less than the activation energy required in the absence of the antibiotic C. The activation energy required for the reaction in the presence of the antibiotic will be the same as the activation energy required in the absence of the antibiotic
A comparative morphologist would be most likely to study ________
a. theological writings about the origins of life b. the worldwide distribution of cactus-like plants c. the distribution of earthquakes and volcanoes d. differences and similarities in the structures of organisms
An anaerobic process does NOT require
A. water. B. oxygen. C. energy. D. phosphate.
An early example of synthetic biology is the use of genetically modified Escherichia coli to produce
a. gels for electrophoresis. b. photographs. c. cows with higher milk production. d. synthetic cells.