Question

Which of the following regulatory DNA sequences might be located thousands of nucleotides away from the transcription start site of a gene?
a. Promoter-proximal element
b. TATA box
c. Enhancer
d. Promoter

Answer 1

Answer:

C. Enhancer

Explanation:

The enhancer is a regulatory DNA sequence that might be located thousands of nucleotide away from the transcription start site of a gene.

Answer 2

Answer:

Enhancer

Explanation:

In some eukaryotic genes, there are some regions ,these regions helps to increase or enhance transcription. These regions, called enhancers,  and are not necessarily close to the genes they enhance. They can be located upstream of a gene, within the coding region of the gene, downstream of a gene, or may be thousands of nucleotides away.

Enhancer regions are binding sequences, or sites, for transcription factors.