Virions infecting some bacteria possess the enzyme ________ that makes a small hole in the bacterial cell wall, allowing the viral nucleic acid to enter
A) peptidoglycanase
B) infectase
C) lysozyme
D) nuclease
Answer: C
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Which sea turtle can tolerate cold temperatures?
a. Leatherback b. Kemp's ridley c. Green d. Hawksbill e. Loggerhead
Genetic goitrous cretinism and alkaptonuria are metabolic disorders in the ____ pathway
a. nucleic acid b. thalassemia c. phenylalanine d. paraoxonase e. lipid biochemical
Which of the following statements is true?
a. There is no danger involved in recombinant DNA research in humans. b. There is no danger involved in recombinant DNA research in bacteria. c. There is no danger in releasing recombinant organisms into the environment. d. Stringent safety rules make the use of recombinant DNA research possible. e. It is safe to conduct recombinant DNA research in plants.
A pathogen is an organism that causes disease.
a. true b. false