"Mad Cow disease" is the result of infection of cattle with what type of agent?

A) bacteria
B) virus
C) viroid
D) prion


Ans: D) prion

Biology & Microbiology

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Which of the regions of the ribosome accepts charged tRNA molecules during the elongation phase of

translation?

a. the A site (aminoacyl site) b. first the A site (aminoacyl site) and then the E site (exit site) c. the P site (peptidyl site) d. first the A site (aminoacyl site) and then the P site (peptidyl site) e. the E site (exit site)

Biology & Microbiology

What process requires oxygen to function?

a. aerobic respiration b. anaerobic respiration c. alcoholic fermentation d. lactate fermentation e. substrate-level phosphorylation

Biology & Microbiology

DNA repair processes require the cooperative efforts of a substantial number of proteins, including which of the following?

a) proteins that recognize and proteins that remove a portion of the strand containing a lesion b) cytoskeletal proteins c) proteins that replace the missing segment with complementary nucleotides d) both proteins that recognize and proteins that remove a portion of the strand containing a lesion and proteins that replace the missing segment with complementary nucleotides

Biology & Microbiology

A bacterial genome is typically

A) a single linear piece of DNA. B) multiple linear pieces of DNA. C) a linear RNA molecule. D) a single circular DNA molecule. E) multiple circular DNA molecules.

Biology & Microbiology