In terms of global gene regulation, which of the following molecules is most similar to c-di-GMP and cAMP?
A. rRNA
B. ATP
C. ppGpp
D. EnvZ
Answer: C
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Tandem clusters allow
A. production of multigene families in a small time frame, especially during early development. B. production of segmental duplications that are impossible with single-copy genes. C. production of several transposable elements necessary for rRNA acquisition. D. production of a huge amount of product in a very short time period.
In a ________ reaction, two small molecules are joined by a covalent bond, and a water molecule is released
a. hydrolysis b. dehydration c. decomposition d. liquidification
Which structure is found in angiosperms but not gymnosperms?
A) fruit B) spores C) seeds D) ovule
In gel electrophoresis, DNA molecules move toward the ________ electrode because they have an overall ________ charge
A) negative; negative B) positive; positive C) negative; positive D) positive; negative E) negative and positive; neutral