Which of the following is not an end-product of fermentation?
A) wine
B) Lactic acid
C) Ethyl alcohol
D) lipid
E) beer
D) lipid
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What may result when grafted tissue such as bone marrow contains passenger lymphocytes?
A. Graft versus host disease B. Formation of autoantibodies C. Hypogammaglobulinemia D. Host rejection of graft
What is the first event in the fossilization process?
A. erosion of soils around the organism B. burial of the organism by sediments C. conversion of organic tissue to minerals (rock) D. hardening of sediments in to rock
You want to make wine that will be 20-25% alcohol, but wine rarely gets to that concentration of alcohol. What can you do to accomplish your goal of high-yield alcohol production?
A. Add brandy to your wine. B. Find an alcohol-tolerant yeast strain. C. Let your fermentation go longer. D. Add more sugar to your starting material.
Treponema vincentii, Bacteroides forsythus, and fusobacteria synergistically are involved in which infection?
A. Ornithosis B. Yaws C. Necrotizing ulcerative gingivitis (NUG) D. Gingivitis E. Nongonococcal urethritis