The process of nitrogen fixation involves the transformation of ________.
A. ammonia to organic matter nitrogen
B. nitrate to nitrogen gas
C. nitrogen gas to ammonia
D. ammonia to nitrate
Answer: C
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The application called multiple strand displacement amplification is a powerful tool because
A. it provides errorless sequencing results for that microorganism. B. it provides data on the pathogenic nature of the microorganism. C. it identifies the transcriptome of the microorganism. D. it allows single-cell genomic sequencing that can analyze uncultivated microorganisms.
Which of the following is NOT a
monosaccharide?
a. glucose b. fructose c. deoxyribose d. starch e. ribose
The lac operon is an example of a(n) _______ operon.
a) repressible b) inducible c) noninducible d) constitutive e) irrepressible
Macromolecules in the cell can often interact transiently as a result of noncovalent interactions. These weak interactions also produce stable, highly specific interactions between molecules
Which of the factors below is the most significant in determining whether the interaction will be transient or stable? (a) the size of each molecule (b) the concentration of each molecule (c) the rate of synthesis (d) surface complementarity between molecules