The study of the practical use of microbes in various industries and technologies is ________.
A. biotechnology
B. bioremediation
C. microbial ecology
D. applied microbiology
Answer: D
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Which type of lipid is most important to the structure of biological membranes?
a. fat b. wax c. phospholipid d. neutral fat e. triglyceride
During the attenuation of the trp operon, which stem loop leads to polycistronic mRNA synthesis during tryptophan starvation?
A) 1-3 (antitermination) stem loop B) 3-4 (termination) stem loop C) 1-2 (pause) stem loop D) 2-3 (antitermination) stem loop E) 2-4 (termination) stem loop
In general, there is about a ______ percent loss of energy as we proceed from one trophic level to the next higher level.
A. 90 B. 80 C. 60 D. 50
Once it is inside a human cell, the HIV enzyme, ________, manufactures a DNA copy from the viral RNA.
A. reverse transcriptase B. DNA polymerase C. forward transcriptase D. helicase