Which of the following statements BEST describes DNA? A. DNA are the same as genes. B. All living things contain DNA. C. There are three bases that compose DNA. D. Billions of people in the world have

Which of the following statements BEST describes DNA? A. DNA are the same as genes. B. All living things contain DNA. C. There are three bases that compose DNA. D. Billions of people in the world have the same genetic code. Please select the best answer from the choices provided. A B C D