Which factors are needed to recognize the stop codon and disassemble the translation machinery?

A. elongation factors
B. release factors
C. transcription factors
D. inititaion factors
E. mRNA factors


B. release factors

Biology & Microbiology

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Which glycolytic enzyme uses ATP as a substrate?

A) alcohol dehydrogenase B) phosphoglucoisomerase C) aldolase D) hexokinase E) triose phosphate isomerase

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Members of the same species must

a. look alike. b. be reproductively isolated from one another. c. share the same gene pool. d. resist interbreeding. e. produce the same variations.

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In which structure are the major cardiac pacemaker cells located?

a. Purkinje fibers b. Bundle branches c. AV node d. SA node e. gap junctions

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Which portion of the swallowing process is voluntary?

a. movement of the tongue b. muscle contractions that push the bolus into the pharynx c. depression of the epiglottis d. peristalsis of the esophagus e. stretching of vocal cords

Biology & Microbiology