Transcriptional control that acts by regulating the continuation of transcription is called:
A. antitermination.
B. riboswitching.
C. negative control.
D. attenuation.
E. operator mutation.
Ans: D. attenuation.
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The evolutionary mode in which species evolve rapidly at first and then remain stable for very long periods of time is
called ____.
a. catastrophism b. uniformitarianism c. disruptive selection d. punctuated equilibrium e. phyletic gradualism
Four of the five answers listed below are functionally connected to each other. Select the exception
a. hammer b. pinna c. stirrup d. anvil e. oval window
The species richness of terrestrial plants and animals generally increases with elevation
Indicate whether the statement is true or false
The actual transport of protons by the proton pump is mediated by a transmembrane protein that undergoes a change in its
A. immunity. B. net charge. C. amino acid sequence. D. solubility. E. conformation.