Which of the following enzymes catalyzes the production of a strand of RNA from DNA?
A) RNA polymerase
B) DNA ligase
C) DNA polymerase
D) reverse transcriptase
Answer: A
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Before ARF transcription factors can trigger auxin-induced gene expression, what must happen?
A. Auxin binds to ubiquitin, a degradation tag. B. Auxin degrades Aux/IAA proteins which repress ARF transcription factors. C. Auxin binds to TIR1, an auxin receptor. D. Auxin must bind to the ARF transcription factor. E. Ubiquitin must destroy TIR1 to release Aux/IAA proteins.
The genetic codes for STOP codons are
A) AUG, UGA and CAC B) UAU, AAU and GAU C) UAA, UAG and UGA D) CAA, AGA and AAU
Identify this plant as a monocot or eudicot after examining its stem and leaf. 
A. This plant is a eudicot. B. This plant is a monocot. C. Not enough information is provided to differentiate the plant as a monocot or eudicot.
Which of these factors stimulates the juxtaglomerular apparatus to produce renin?
A. sudden decreases in blood pressure B. concentration of sodium ions in the blood is too low C. concentration of potassium ions in the blood is too high D. both sudden decreases in blood pressure and concentration of sodium ions in the blood is too low. E. All of these conditions increase renin secretion.