Prions:

A) are a type of infectious agent composed only of protein
B) cause Alzheimer's disease
C) are a treatment for CJD developed by Stanley Prusiner
D) are a type of virus
E) destroy the cells lining the gastrointestinal tract


Ans: A) are a type of infectious agent composed only of protein

Biology & Microbiology

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A eukaryotic gene that is regulated by three activator proteins is said to be under

A. triplet regulation. B. individual control. C. self-regulation. D. combinatorial control. E. elastic control.

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Suppose one strand of a "mini-gene" has the base sequence TACCCGGATTCA. If we assume no introns are involved, how many amino acids does the polypeptide encoded by this gene have?

A) 12 B) 6 C) 2 D) 4

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Ruffini corpuscles respond to a light touch against the skin

Indicate whether the statement is true or false

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All of the following are correct about Tamiflu and Relenza except 

A. they inhibit fusion and uncoating of the virus. B. they are used to treat infections by influenza A and B. C. they should be given early in an infection. D. they are effective prophylactics for influenza. E. they prevent assembly and release of the virus.

Biology & Microbiology