Which of the following clusters of terms applies when addressing enhancers or silencers as elements associated with eukaryotic genetic regulation?
A) cis-acting, variable orientation, variable position
B) trans-acting, fixed position, fixed orientation
C) cis-acting, fixed position, fixed orientation
D) cis-acting, variable position, fixed orientation
E) trans- and cis-acting, variable position

Question

Quizplus · Accepted Answer

Enhancers and silencers are cis-acting elements, meaning they regulate genes on the same DNA molecule. They can function regardless of their orientation relative to the gene they regulate and can be located at variable positions either upstream, downstream, or within the gene they control.

Which of the Following Clusters of Terms Applies When Addressing