Question

In eukaryotes, when an enhancer is bound, it

Select one:

a. stimulates splicing of nearly all mRNAs.

b. stimulates splicing of a specific mRNA.

c. increases the stability of a specific mRNA.

d. stimulates transcription of a specific gene.

e. stimulates transcription of nearly all genes.

Answer 1

Option D

Enhancers are DNA sequences which bind to proteins called as activators to increase gene expression (rate of transcription of gene). They are generally located far from the gene they control. They can be upstream or downstream.

See the diagram below for the location of enhancers -

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