Which control method would not be a suitable choice for killing Mycobacteria in a capped culture tube?
A. ultraviolet (germicidal) light
B. gamma rays
C. 160°C for 2 hours
D. 121°C at 15 psi for 15 minutes
E. All of these choices are correct.
Answer: A
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The antigen that induces an antibody or TCR is called the
A) homologous antigen. B) heterologous antigen. C) cross-reactive antigen. D) immunogenic antigen.
Which of the following mechanisms is used by retrotransposons?
A. cut-and-paste transposition B. replicative transposition C. bacterial transduction D. transposition via an mRNA intermediate E. lysogeny
The complete genetic composition of an organism is called its
A. proteome. B. genome. C. transcriptosome. D. phenotype. E. None of these choices are correct.
In bacteria, restriction enzymes function to ____
a. identify sequences of interest in a DNA library b. produce human proteins c. provide antibiotic resistance d. chop up invading viral DNA e. make the cells vulnerable to viruses