Which disease did Stanley Prusiner first identify as being caused by prions?

a. Kuru
b. Mad cow disease
c. Fatal familial insomnia
d. Scrapie


Ans: d. Scrapie

Biology & Microbiology

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A particular strain of yeast produces strains with a mutant cdc2 gene, resulting in little to no production of the Cdc2 protein kinase. As a result, one would expect that these cells would

A) not enter M phase. B) not have the nuclear envelope disperse. C) lack chromosome condensation. D) all of the above E) none of the above

Biology & Microbiology

Microfilaments are assembled from the protein ____

a. keratin b. myosin c. laminin d. actin e. tubulin

Biology & Microbiology

If a restriction endonuclease cuts a circular DNA three times, how many fragments should there be

after the DNA is subjected to electrophoresis through an agarose gel?

a. 1 b. 2 c. 3 d. 4 e. 5

Biology & Microbiology

A pigment that absorbs red and blue light and reflects green light is

A) xanthophyll. B) phycocyanin. C) chlorophyll. D) carotenoid. E) melanin.

Biology & Microbiology