Recombinant DNA technology does not rely on which of the following enzymes?
A. DNA ligase
B. reverse transcriptase
C. RNA methylase
D. restriction endonucleases
Answer: C
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Public health surveillance is the proactive evaluation of
A. emerging infectious agents. B. environmental conditions. C. human behaviors and lifestyle choices. D. genetic background. E. All of the choices are correct.
In seed plants, which develops into a female gametophyte?
a. megaspore b. microsporangium c. microspore d. megasporangium e. sporophyte
Purple sulfur bacteria are organisms capable of photosynthesis. They get their name, in part, because they use H2S (hydrogen sulfide) instead of water during the light reactions. In what form would you expect to find sulfur (S) as a result of
photosynthesis in these bacteria? A) S2 B) SO2 C) CS2 D) C6H12S6
An emerging disease is one that
A. is now present on multiple continents. B. can be transmitted in multiple ways. C. is newly recognized in the last two decades. D. has suddenly caused an epidemic. E. can infect both humans and animals.