What would occur if the repressor of an inducible operon were mutated so that it could not bind the operator?
A) irreversible binding of the repressor to the promoter
B) reduced transcription of the operon's genes
C) continuous transcription of the operon's genes
D) overproduction of catabolite activator protein (CAP)
C
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Select all correct descriptions of the limbic system.
A. contains the amygdala and hippocampus B. integrates our emotions with our higher mental functions C. contains a number of reflex centers D. accounts for why eating and sexual behavior seem pleasurable
Regulation of integrin-mediated adhesion can regulate cell movement.
a. true b. false
One advantage that enabled the seed plants to greatly surpass the ferns in colonizing the land was the evolution of
A) spores. B) photosynthesis. C) sex without swimming sperm. D) a fibrous root system. E) a woody stem.
________ are complex communities of various types of microbes that adhere to surfaces
A) Aggregates B) Colonies C) Isolates D) Biofilms E) Media