Which of the following species interactions is(are) considered symbiotic?
A. competition
B. predator/prey
C. parasite/host
D. mutualism
E. Both C and D are correct.
Answer: E. Both C and D are correct.
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In a natural population of diverse slow-growing prokaryotic cells, what type of viruses would you expect to be most common?
A) lytic bacteriophages B) enveloped viruses C) icosahedral viruses D) temperate bacteriophages
Using a specific example, explain the term "accidental host."
What will be an ideal response?
Why was the addition of methionine necessary during the production of somatostatin by recombinant bacteria?
A. So that it was compatible with the restriction enzyme B. As a selectable marker C. To allow the somatostatin to link to a bacterial protein D. To increase the length of the peptide to make it more commercial
Which metabolite of alcohol is most toxic?
a. alcohol dehydrogenase b. ethanol c. acetaldehyde d. acetate e. carbon dioxide