The Pleiotropy That Occurs When a Single Gene Controls Multiple

question 41

Multiple Choice

The pleiotropy that occurs when a single gene controls multiple skeletal traits in dogs,such as leg bone length and skull size,may be explained because

• A) dogs share a common ancestor.
• B) the skeletal traits are related in the overall function of the dog.
• C) dogs have lived with humans for thousands of years.
• D) the effect of this gene depends on the environment.