Which of the following are sequence motifs?
A. open reading frame
B. hairpin structures
C. transcription factors
D. coding region
E. All of the answer options are correct.
E
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An individual who avoids light is exhibiting
(a) negative phototaxis. (b) positive geotaxis. (c) negative thigmotaxis. (d) positive thigmotaxis.
What type of chemical reaction must occur for electrons to flow from one molecule to the next and
supply the energy for metabolism?
a. acid/base b. reduction/oxidation c. exothermic d. trimolecular e. phosphorylation
Adipose tissue cells are filled with
a. minerals. b. fat. c. cartilage. d. fibers. e. muscles.
Blood in arteries
a. always travels away from the heart. b. travels away from the heart only if it is oxygen rich. c. always travels toward the heart. d. travels from the lungs. e. is always oxygen rich.