A researcher obtains a sequence of a gene of interest including the ORF, 5? untranslated region, and 3? untranslated
region. Which portion of the gene sequence encodes the protein?
a. the 5? untranslated region and the ORF only
b. the ORF only
c. the ORF and 3? untranslated region only
d. the 5? and 3? untranslated regions only
e. the ORF, 5? untranslated region, and 3? untranslated region
ANSWER: b
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A mutualism in which the survival of one or both participants is dependent on the other is ____
Fill in the blank with the appropriate word.
The agency that requires health care facilities to provide employees with all devices and mechanisms necessary to protect them from the hazards encountered in the laboratory is:
a. Department of Health and Environmental Control (DHEC). b. Occupational Safety and Health Adminis-tration (OSHA). c. Centers for Disease Control and Preven-tion (CDC). d. Health Emergency Planning Advisor (HEPA).
The adaptive benefit of flowers in the angiosperms is that they
A. are structures of plants that are only ornamental and have no reproductive value in plants. B. produce both pollen and egg cells. C. are produced by both gymnosperms and angiosperms. D. produce egg cells only. E. produce pollen only.
Which of the following statements about early ideas of evolution is true?
A. Darwin sailed around Earth over a five-year period and gathered information that greatly influenced his thinking about evolution. B. Charles Darwin came up with the idea that species evolve. C. Aristotle thought that species evolved. D. Lamarck suggested the idea of natural selection.