Some mice have inherited a genetic mutation that causes them to have a band of white fur around the middle of their bodies. What is most likely true about an ancestor of these mice? A. a change in its fur color modified the structure of its DNA.
B. a change in its food source affected only the fur around its stomach.
C. a change in its environment changed the DNA of only part of its body.
D. a change in its DNA resulted in a modified protein that controls fur color.