What transgenic animal, other than mice, has been used to model human neurodegenerative diseases?

A. monkeys
B. Drosophila
C. rats
D. roundworms
E. frogs


: B

Biology & Microbiology

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Mannitol salt agar (MSA) only allows the growth of halophiles (salt-loving microbes); nonhalophiles will not grow. Among the halophiles, mannitol fermenters will produce acid that turns the pH indicator yellow; mannitol nonfermenters leave the medium red. Onto MSA you inoculate a halophilic mannitol fermenter and a halophilic mannitol nonfermenter. In this case, the medium is acting as (a) ________ medium(s).

A. enrichment B. differential C. selective and differential D. selective

Biology & Microbiology

Symptoms of cryptosporidiosis include

A. chills, fever, and sweats. B. bloody, mucus-filled stools and fever. C. a red skin papule that spreads to a large ulcer. D. headache, sweats, vomiting, severe abdominal cramps, and diarrhea.

Biology & Microbiology

The endosymbiont theory proposes that

What will be an ideal response?

Biology & Microbiology

The events of ________ are initiated at sequences called origins

A) DNA replication B) translation C) splicing D) transcription E) transposition

Biology & Microbiology