Which of the following accurately describes the structure of DNA? a. DNA is in the form of antiparallel strands twisted as a double helix. b. DNA is made up of nucleotides, containing a 3-carbon sugar, a phosphate group, and base. c. A always pairs with C, and G always pairs with T. d. DNA consists of four bases: A, G, C, and U.
a. DNA is in the form of antiparallel strands twisted as a double helix.