Which of the following statements about an inducible operon is false?
A) Certain conditions activate transcription.
B) When present, an inducer will inactivate the repressor.
C) When off, RNA polymerase is blocked by the operator.
D) It is off by default.
E) When off, the repressor binds to the operator.
Answer: C
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The dark pink color at the top of this picture represents the ____ biome
a. temperate deciduous forest b. chaparral c. tundra d. temperate grassland e. boreal forest
A photosystem channels the excitation energy gathered by absorption of light by any one of the pigment molecules to a specific reaction center chlorophyll, which in turn passes the energy to
A. cytochrome. B. accessory pigments. C. photosystem II. D. the secondary electron center. E. the primary electron acceptor.
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For these enzymes, would you expect the inactive form to be the phosphorylated form or the dephosphorylated form? Explain your answer.