Plants that are called C4 plants are better able to utilize ________ than C3 plants.
A. oxygen
B. minerals
C. water
D. carbon dioxide
E. chlorophyll
D. carbon dioxide
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An Etest ® is a clinical tool used for the determination of
A) enteric presence. B) Escherichia coli O157:H7 presence. C) the minimum inhibitory concentration (MIC) value of an antimicrobial agent. D) pathogenic enzyme activity.
In microarrays, the oligonucleotides that are attached have the fluorescent tag, whereas the DNA fragments being tested do not
A. true B. false
Researchers have determined that the growth of hormone-responsive breast cancer cells depends upon ____
a. the relative concentrations of ER? and ER? in the tumor cells b. the ability of ER? to stimulate cancer cell growth c. the ability of ER? to inhibit cancer cell growth d. whether DNA binding sites exists for ER?, but not ER? e. the relative concentrations of estrogen and testosterone in breast tissue
Semmelweis advocated handwashing as a method of preventing which of the following diseases?
A) cholera B) puerperal fever C) smallpox D) anthrax E) syphilis