Of all the different codons that exist, three of them _____________.
A. are involved in mutations
B. give the signal to stop translation
C. cannot be copied
D. do not specify a particular amino acid and are signals to begin translation
E. do not specify a particular amino acid and are signals to terminate translation
Answer: E
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Anammox is an anaerobic process that generates energy from ________ and forms N2
A) ammonia B) ammonium C) ammonia and nitrate D) ammonia and nitrite
Energy yields are high enough for Fe2+ oxidation that the bacteria that perform this reaction require only small quantities of Fe2+ to be available
Indicate whether the statement is true or false.
The alcid species hunted to extinction was the:
a. common auk. b. great puffin. c. common murre. d. great auk. e. great skua.
Secondary metabolites are termed “secondary” because
a. they are synthesized as part of basic metabolism. b. they are only synthesized in plant leaves. c. they are synthesized as precursors to primary metabolism. d. they are not synthesized in all plant cells as part of basic metabolism. e. they are only synthesized in plant roots.