The genetic code uses _________ nucleotide(s) to specify one amino acid.  

A.  one
B.  two
C.  three
D.  four
E.  64


C.  three

Biology & Microbiology

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Which type of plant hormone is primarily responsible for the bending of a plant shoot toward light?

a. auxins b. ethylene c. systemin d. salicylic acid e. brassinosteroids

Biology & Microbiology

When dissolved in water, a(n) _____ donates H+; a(n) _____accepts H+

a. acid; base c. buffer; solute b. base; acid d. base; buffer

Biology & Microbiology

Which of the following areas of investigation is considered a major driver of modern microbiology?

A) microbial classification B) industrial microbiology C) the etiology of infectious disease D) genetics E) food preparation

Biology & Microbiology

Erysipeloid is transmitted by

A. inhalation of spores from hides and wool of animals. B. ingestion of improperly cooked hot dogs. C. an abrasion on skin coming in contact with infected swine or other animals. D. contaminated soil entering deep puncture wounds. E. respiratory secretions.

Biology & Microbiology