試題詳解

17. Which of the following statements is the best description of the Chargaff's rules?
(A) Single-stranded RNA molecules contain the same amount of A and U.
(B) All DNA molecules contain the same proportions of A, C, G and T.
(C) The amount of T equals the amount of C in the double-stranded DNA.
(D) The amount of G equals the amount of C in the double-stranded DNA.