試題詳解

80. Which of the following statements concerning regulation of eukaryotic gene expression is FALSE?
(A) DNA methylation can activate or inactivate gene expression.
(B) Acetylation of histone tails promotes condensation of the chromatin.
(C) Enhancers are segments of DNA that may be within an intron.
(D) Unlike operons in E. coli, dispersed genes can be coordinately controlled by transcription activators or repressors in eukaryotes.
(E) Alternative RNA splicing can produce different mRNA molecules from the same primary transcript.