All mRNA transcripts begin with
a. methionine.
b. a ribosome.
c. AUG.
d. the P site.
e. an anticodon.
Answer: c
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Selection of culture media for specific specimens includes a variety of media for all of the following reasons except:
a. a nutritive media is included to insure growth of all potential pathogens. b. a selective media is often included to sup-press normal microbiota or other potential contaminating organisms. c. as enrichment media is utilized to cultivate organisms that do not grow on routine media. d. a back-up broth is included to provide in-oculum for additional testing.
In bacteria, the cell wall is composed mainly of
a. peptidoglycans. b. lipids. c. glycoproteins. d. proteins. e. various polysaccharides.
Which contraceptive approach is least effective?
a. abstinence b. tubal ligation c. vasectomy d. hormonal implant e. rhythm method
Yeast is used to produce beer and wine but can also make bread rise. All of these processes involve the production of alcohol. Explain why you can eat bread and not get drunk
A) The heat of cooking bakes out the alcohol. B) The amount of alcohol produced is too small to be noticeable. C) The bread-making process produces ethyl alcohol, not isopropyl alcohol. D) The bread-making process produces isopropyl alcohol, not ethyl alcohol.