MicroRNAs (miRNAs)
A) are long RNA molecules.
B) silence the expression of specific mRNAs.
C) silence the expression of any mRNA present in the cytoplasm.
D) are cut by an enzyme called transcriptase.
E) are found only in animals.
Correct Answer:
Verified
Q21: Eukaryotic DNA methylation occurs on which base?
A)guanine
B)cytosine
C)thymine
D)adenine
E)thymine
Q22: When lactose becomes available the genes encoding
Q23: Bacteria can regulate gene expression by controlling
Q24: Why would bacteria evolve so that the
Q25: Loosely packed chromatin is said to be
Q27: DNA methylation
A)increases transcription.
B)inhibits transcription.
C)increases crossover events.
D)decreases crossover
Q28: MicroRNAs increase the rate of mRNA translation.
Q29: Both eukaryotes and prokaryotes require a promoter
Q30: An activator is to an enhancer as
Q31: Different globin polypeptides are expressed at similar
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