Jill broke her cheekbone in an ice skating accident. Which bone did she break?
A. frontal bone
B. mandible
C. zygomatic bone
D. temporal bone
E. maxilla
Answer: C
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Which of the following is most responsible for the increasing challenge of protist infections?
A. Protists are not always recognized by the host immune response. B. Protists are becoming completely resistant to the drugs used to control them. C. Protists are mutating and gaining virulence factors. D. The size of the susceptible population is growing as the number of patients with immunocompromising conditions is increasing.
Crick's proposed "adaptor molecule" is now known to be:
A. mRNA. B. rRNA. C. tRNA. D. imRNA.
All cells possess a _____________
a. cell wall b. nucleus c. plasma membrane d. nucleolus
The horizontal transfer process known as transduction
A) involves a virus. B) requires a pilus. C) requires a cell to be "competent." D) requires a plasmid. E) involves a mutagen.