Two diseases that represent high-priority threats as biological weapons today are
A) smallpox and typhus.
B) syphilis and HIV.
C) anthrax and botulinum.
D) anthrax and Salmonella.
Answer: C
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The fluid nature of the membranes is attributed to a lateral movement of
A. protein channels. B. phospholipid molecules. C. antigen molecules. D. pumps such as the proton pump. E. the entire lipid bilayer.
Which of the following is not true of the genes encoding the enzymes required for transporting and metabolizing galactose in yeast?
A. Each of the GAL genes is transcribed separately. B. The GAL genes are arranged in an operon. C. All of the GALgenes have similar promoters. D. All of the GAL genes are coordinately regulated by a common set of proteins.
The process of a high-energy "donor" molecule physically transferring a phosphate group to ADP is called
A. substrate-level phosphorylation. B. glycolysis. C. oxidative phosphorylation. D. photosynthesis. E. electron transport.
Answer the following questions true (T) or false (F)
1. Both agglutination and ELISA procedures may be used to detect the presences of either viral antigen or the patient's antibodies to a virus. 2. Antiviral drugs exist that target all stages of viral replication except the production of viral nucleic acids. 3. Bacterial spore formation is a type of sexual reproduction.