If the Avery-MacLeod-McCarty transformation experiment was carried out in an RNA world, the transforming activity would be destroyed by:
a. RNase.
b. lipase
c. DNase
d. protease
Ans: a. RNase.
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The Permian mass extinction is hypothesized to have been caused by volcanic eruptions resulting in:
A. global warming, lack of oxygen, and ocean acidification. B. ocean acidification. C. lack of oxygen. D. global warming. E. global warming and lack of oxygen.
The concentration protocol of the ova and parasite (O&P) examination:
a. requires freshly passed, unpreserved stool. b. is designed to allow the detection of pro-tozoan cysts, coccidian oocysts, micro-sporidial spores, and helminth eggs and larvae. c. is microscopically examined at low, high dry, and oil immersion magnifications. d. is designed to facilitate the identification of intestinal protozoa.
A duplicated chromosome has _____ chromatid(s)
a. one b. two c. three d. four e. zero
If an experimenter wants to use the GFP method but needs to detect the presence or absence of several proteins at the same time, he can take advantage of mutational variants of GFP that emit what?
What will be an ideal response?