When an enhancer is bound, it
A) increases the stability of a specific mRNA.
B) stimulates transcription of a specific gene.
C) stimulates transcription of nearly all genes.
D) stimulates splicing of a specific mRNA.
E) stimulates splicing of nearly all mRNAs.

Question

Quizplus · Accepted Answer

Enhancers are DNA sequences that enhance or increase the transcription of specific genes. When an enhancer is bound, it stimulates the transcription of a specific gene by interacting with transcription factors and RNA polymerase to promote the initiation of transcription. The other choices are not accurate because enhancers do not directly affect stability of mRNA or splicing of mRNA. Additionally, enhancers do not stimulate transcription of nearly all genes, as they act selectively on specific target genes.

When an Enhancer Is Bound, It