The ectodysplasin gene of stickleback fish in fresh and salt waters provides a good example of pleiotropy,because it ________.
A) affects both growth rate and bony armor of a stickleback
B) includes a DNA-binding homeodomain
C) has been duplicated repeatedly to create a whole family of variants
D) has been transferred from another organism
E) allows different populations of stickleback to interbreed
Correct Answer:
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