Large-scale screening of blood for the hepatitis B virus uses an assay designed to detect
A. the Delta agent.
B. viral surface antigens.
C. alanine transaminase.
D. the Dane particle.
Answer: B
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Mycorrhizae are a symbiotic association of
A. bacteria and algae. B. bacteria and virus. C. fungi and virus. D. plant roots and fungi.
The research of which of the following scientists showed that genetic disorders and abnormal
metabolism are related? A. Sir Archibald Garrod B. Francis Crick C. Linus Pauling D. Linda Bartoshuk E. James Neel
A cell is limited in its size by ________
A) its ability to move waste material out B) its ability to move nutrients in C) its surface-to-volume ratio D) All of the above are correct.
Based on these results from the Bacterial Examination of Food exercise, what can you conclude about the bacteria present in the food sample? (Choose all that apply)
> They cannot ferment lactose > They are strong lactose fermenters > They are not coliforms > They are facultative anaerobes > They are Gram-negative > They are obligate anaerobes > They are Gram-positive > They are coliforms