The gene that codes for a protein capable of repressing an operon is called the ___
A. Operator
B. Structural locus
C. Regulator
D. Promoter
E. Terminator
Answer: C. Regulator
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Which of the following is not true of miRNA processing?
A. Drosha processes primary miRNA transcripts to precursor miRNAs. B. RISC binds to pre-miRNA in the cytoplasm. C. RNA helicase is necessary for unwinding the miRNA duplex. D. Dicer completes the processing by cleaving the single-stranded form of the miRNA.
Which of the following pressures is lower during inspiration than during expiration?
A) intra-alveolar pressure only B) transpulmonary pressure only C) intrapleural pressure only D) both intra-alveolar and transpulmonary pressures E) both intra-alveolar and intrapleural pressures
Refer to the accompanying figure. Which beetle phenotype has the highest probability of survival?
a. 1
b. 2
c. 3
d. 4
e. There is no difference in survival rate.
At which of the following checkpoints is the DNA checked for damage and, if damage is present, the cell is placed in G0 phase?
a. M b. G2 c. G1 d. None of these are correct.