Mutation of DNA that produces an altered ribosome is an example of what type of bacterial resistance mechanism?
A) alteration of a metabolic pathway
B) alteration of an enzyme
C) development of enzymes
D) alteration of target
Ans: D) alteration of target
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The receptors to which animal virus attachment proteins usually bind are
A. proteins. B. carbohydrates. C. nucleic acid. D. lipids. E. glycoproteins.
Treating a bacterial infection by inoculating the host with a bacterial virus is
A. None of the answer choices is correct. B. radiation therapy. C. phage therapy. D. antibiotic therapy. E. chemotherapy.
Which animal is a chordate?
a. sea star. b. sea cucumber. c. acorn worm. d. lancelet.
Which of the following methods of DNA amplification does NOT require cloning?
a. reverse transcription b. polymerase chain reaction c. cloned DNA d. reverse transcription and polymerase chain reaction e. polymerase chain reaction and cloned DNA