How did the researchers first know that Marilyn the chimp may be infected with HIV?

a. Because she had HIV RNA in her blood
b. Because she had HIV DNA in her tissues
c. Because she had been used in HIV research
d. Because she had raised antibodies against HIV
e. Because she had symptoms of HIV infection, or AIDS


Answer: d. Because she had raised antibodies against HIV

Biology & Microbiology

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A. single-sided. B. double-sided. C. double-blind. D. double-barrier.

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There is currently a drying trend due to global warming in the Southern Hemisphere

Indicate whether the statement is true or false

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An enzyme's name is NOT likely to include 

A. the type of reaction the enzyme facilitates. B. the location in the body where the enzyme is commonly found. C. the substrate the enzyme works on. D. -ase.

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What structure of the spinal cord carries motor impulses from the brain?

A. dorsal horn B. dorsal root C. dorsal root ganglion D. ventral root

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