Which of the following drugs does NOT act by competitive inhibition?
A) ethambutol
B) isoniazid
C) streptomycin
D) sulfonamide
E) trimethoprim
C
You might also like to view...
Purines and pyrimidines are two classes of organic bases found in ____
a. sugars b. phosphates c. fats d. carbohydrates e. nucleic acids
A bacterium that has been moved from one genus (Pseudomonas) to another genus (Burkholde-ria) would be correctly noted as which one of the following?
a. Pseudomonas (Burkholderia) b. Burkholderia (Pseudomonas) c. Pseudomonas, formerly Burkholderia d. Burkholderia, formerly Pseudomonas
What protein influences the ability of RNA polymerase to transcribe genes?
A. DNA polymerases B. DNA helicases C. transcription factors D. snRNPs E. tRNA
What statement about biochemical pathways is correct?
A) All enzymes in the pathway catalyze the same reaction. B) If an enzyme in a pathway is inactive, adding excessive amounts of its substrate will restore the normal phenotype. C) If an enzyme in a pathway is inactive, adding excessive amounts of its product will restore the normal phenotype. D) If the enzyme that catalyzes the final step in a pathway is inactive, all the other enzymes will be inactivated as well. E) If the first enzyme in a pathway is inactivated, adding the final product will not restore the normal phenotype.