Which animal would you predict would have the highest mass-specific metabolic rate?
A. a lizard
B. a squid
C. an elephant
D. a goose
E. a hummingbird
E. a hummingbird
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A researcher is interested in whether or not a transcription factor binds to a specific site on a strand of DNA. However, the samples accidentally contain SDS. What will the gel mobility shift assay results show?
A. The protein will bind the DNA and retard the movement of the DNA through the gel. B. The protein will not bind to the DNA and the movement of the DNA through the gel will not be affected C. The protein will bind the DNA and the movement of the DNA through the gel will not be affected. D. The protein will not bind the DNA and the movement of the DNA through the gel will be affected.
The primary reason certain plants grow well as houseplants is because they may be adapted to:
A. dry growing conditions B. areas that normally lack direct sunlight C. areas that get very little mineral content in the soils D. growing short branches E. lack of temperature changes
Each platelet lasts between ___ and ___ days
a. 1---2 b. 3---5 c. 4---7 d. 5---9 e. 10---20
Blood agar is often used to differentiate between
A) salt sensitive and non-salt sensitive microbes. B) bacteria that absorb oxygen and those that do not. C) types of hemolysis the bacteria may produce. D) all of the above.