A response element is
A) any protein whose expression is changed in response to a signal.
B) a sequence of regulatory DNA.
C) a domain of the glucocorticoid receptor that binds DNA.
D) a sequence of DNA coding for a steroid or metabolite receptor.

Question

Quizplus · Accepted Answer

A response element is a sequence of regulatory DNA that is recognized and bound by a specific transcription factor in response to a signal. It controls the expression of a particular gene or set of genes. A and C are too specific and D is incorrect because it refers only to receptors, whereas response elements can be recognized by other types of transcription factors as well.

A Response Element Is