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.
Answer: B
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.
Answer: B