試題詳解

1.Enhancer function underlies regulatory processes by which cells establish patterns of gene expression. Which of the following descriptions about enhancer is not correct?
(A) Enhancer works as cis-regulatory elements to mediate spatiotemporal control of gene expression.
(B) Enhancers can be identified using a reporter gene. Once a reporter gene is integrated near an enhancer, its expression reflects the expression pattern.
(C) Next-generation sequencing (NGS)-based approach called RNase-seq enables identification of enhancers.
(D) Enhancer help recruit RNA polymerase II to promoters and can attract various chromatin-modifying enzymes to DNA.
(E) Enhancer is distal sequences that lie upstream or downstream of the core promoter and recruit transcription factors