Experience with Dog Breeding Has Taught Geneticists ________

Multiple Choice

Experience with dog breeding has taught geneticists ________.

A) that,given enough time,any desired trait can be bred into dogs
B) that purebred dogs have offspring with qualities identical to the parents,because all purebred dogs are alike genetically
C) that,while physical traits can be molded through artificial selection,behavioral traits cannot
D) that geographically isolated groups of dogs may be selected for quite different traits,resulting in a different dog breed