44. Which description of the difference between DNA and RNA synthesis is WRONG? (A) Both of them have active and efficient proofreading function (B) Ribonucleotides are used in RNA synthesis (C) RNA polymerase does not need primer to initiate the synthesis of RNA (D)U replaces T as the complementary base for A in RNA (E) Only portions of the genome are transcribed into RNA, whereas the cntire genome must be copied, once and only once during DNA replication