The process of filtration is a(n)
A) disinfectant method.
B) sterilizing method.
C) sanitization method.
D) antiseptic procedure.
E) ineffective method for removing microbes.
B
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When chemical, transport, or mechanical work is done by an organism, what happens to the heat generated?
A) It is used to power yet more cellular work. B) It is used to store energy as more ATP. C) It is used to generate ADP from nucleotide precursors. D) It is lost to the environment. E) It is transported to specific organs such as the brain.
Using a host defective in proteases is likely to be necessary when engineering
A) a complete metabolic pathway requiring several different enzymes. B) overproducing proteins. C) production of a small protein. D) transgenic animals with immune systems.
Which of the following is a function of RNA that is dependent on its three-dimensional structure?
A. catalytic role in translation and splicing B. transient carrier of genetic information C. carrier of amino acids to the site of protein synthesis D. information storage as double-stranded RNA helices in viral genomes E. All of these functions of RNA are dependent on its three-dimensional structure.
The distribution of the human population in the
United States is a. clumped. b. random. c. uniform. d. constant. e. homogeneous.