An African butterfly that is green in the summer turns brown in the fall thanks to a temperature-controlled genetic switch. This best illustrates that genes are

A) mutations.
B) self-regulating.
C) interactive.
D) protein molecules.

Genetic Switch

A molecular mechanism that can turn on or off the expression of specific genes in an organism.

Self-Regulating

The ability of an individual to manage and adjust their behavior, emotions, or thoughts towards achieving personal goals.

Protein Molecules

Large, complex molecules that play many critical roles in the body, including catalyzing metabolic reactions and supporting cellular structure.