Biology > EXAM > GCU BIO 181 FINAL EXAM (EXAM 4) | 80 Questions with 100% Correct Answers | Updated & Verified (All)
GCU BIO 181 FINAL EXAM (EXAM 4) | 80 Questions with 100% Correct Answers | Updated & Verified
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The tryptophan operon is a repressible operon that is: - ✔✔Turned off whenever tryptophan is added to the growth medium. The lactose operon is likely to be transcribed when: - ✔✔The cyclic A... MP and lactose levels are both high within the cell. For a repressible operon to be transcribed, which of the following must occur? - ✔✔RNA polymerase must bind to the promoter, and the repressor must be inactive. Which of the following, when taken up by the cell, binds to the repressor so that the repressor no longer binds to the operator? - ✔✔Inducer What is a promoter? - ✔✔Sequence where the RNA polymerase binds and begins transcription. It is upstream of the sequence encoding the protein Which of the following is a protein produced by a regulatory gene? - ✔✔Repressor What is a corepressor? - ✔✔A small molecule that combines with and activates a repressor produced by a regular gene [Show More]
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