The fight or flight response is triggered by the _____ nervous system.
A. sympathetic
B. synthetic
C. GAS
D. parasympathetic
Answer: A. sympathetic
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The agency that has published guidelines known as Standard Precautions to reduce the risk of disease transmission in laboratories is:
a. DHEC. b. OSHA. c. CDC. d. EPA.
You and a friend are student assistants in a research laboratory that investigates the anticancer properties of proteins isolated from marine organisms. Your friend mentions that she is using a BAC vector to insert shark DNA into Escherichia coli, but after repeated attempts, has found that the bacterial cells fail to synthesize the encoded protein. What is your advice?
A. If the shark DNA is unmodified, it contains introns that are not recognized by bacteria, therefore protein synthesis will not occur. B. Because Escherichia coli is not naturally competent, it cannot serve as the cloning host for foreign DNA. C. Since shark DNA is eukaryotic, the cloning vector should be a YAC derived from yeast rather than a BAC derived from bacteria. D. It is impossible to clone eukaryotic DNA into a bacterial host, since eukaryotic DNA has introns and prokaryotic DNA does not.
Anaerobic respiration involves the use of molecules other than oxygen as the final electron (acceptor/donor) in an electron transport chain.
Fill in the blank(s) with the appropriate word(s).
For surface cultivation of microorganisms, a sulfated polymer called agar can be extracted from ________ and added to liquid media to solidify it.
A. animal fat B. algae C. fungi D. bacteria