Which of the following mechanisms is (are) used to coordinate the expression of multiple, related genes in eukaryotic cells?
A) Environmental signals enter the cell and bind directly to promoters.
B) The genes share a single common enhancer, which allows appropriate activators to turn on their transcription at the same time.
C) The genes are organized into a large operon, allowing them to be coordinately controlled as a single unit.
D) A single repressor is able to turn off several related genes.

Question

Quizplus · Accepted Answer

The genes sharing a single common enhancer allows for coordinated expression, as the enhancer can activate multiple genes at the same time through the binding of appropriate activators. Other mechanisms listed do not involve coordination of multiple genes.

Which of the Following Mechanisms Is (Are) Used to Coordinate