Small internal cell structures are best visualized with a
A. dark-field microscope.
B. flagellar microscope.
C. light microscope.
D. transmission electron microscope.
Answer: D
Biology & Microbiology
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Rickettsias are not ________.
A. the cause of Rocky Mountain Spotted Fever B. obligate intracellular parasites C. able to use glucose as an energy source D. All of the choices are correct.
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Pattern baldness is a(n) ____ trait
a. X-linked b. Y-linked c. sex-linked d. sex-limited e. sex-influenced
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Which of the following is the genetic condition
observed in the middle person from the above figure? a. Huntington disease b. acondroplasia c. triple recessive condition d. galactosemia e. all of these
Biology & Microbiology
The primers in PCR are
a. fragments of mRNA. b designed to base pair with mRNA. c. free nucleotides. d. radioactive. e. none of these.
Biology & Microbiology