Which of the following is the best definition of biotechnology?
A) The use of microorganisms to produce useful products.
B) The sequencing of microbial genomes.
C) The study of replication and recombination in microbes.
D) The study of genetic expression in microbes.
E) The deliberate modification of the genome of an organism for practical purposes.
A
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In highly integrated insect societies,
a. natural selection favors individual behaviors that lead to greater diversity among members of the society. b. there is scarcely any division of labor. c. cooperative behavior predominates. d. patterns of behavior are flexible, and learned behavior predominates. e. all of these are true
Penicillin leaves the blood plasma through tubular walls and not through the glomerulus. Therefore, penicillin is removed from the blood by the process of
A. glomerular filtration. B. osmosis. C. diffusion. D. tubular reabsorption. E. tubular secretion.
Histones are
A. proteins associated with DNA in the nucleus. B. proteins of the cytoskeleton. C. enzymes found in lysosomes. D. on the surface of rough endoplasmic reticulum. E. found in polyribosomes.
A relationship in which both members benefit is called
A. mutualism. B. commensalism. C. sympatric. D. parasitism. E. predation.