when dna is copied, sometimes one or more of its nitrogen bases are copied incorrectly. how do you predict that a change to a single nitrogen base, such as an adenine or a thymine, could affect the function of a gene? use science reasoning to support your prediction.

Analyze the analogy and read the information below it. fish : fin : : bird : wing if you were reading this aloud, you would say, "fish is to fin as bird is to wing." this analogy uses parts of an animal to relate to the whole animal. much like how a fin a fish move, so does a wing a bird move. which analogy also uses parts to relate to the whole? sky : blue : : dirt : brown flower : petal : : tree : leaf car : road : : boat : water food : sandwich : : sport : softball