Transcription: The structure of the DNA allows you to obtain two exact copies of a molecular molecule. To achieve this duplication, the two polynucleotides that form the double helix are used every one of the ages of the mold for the synthesis of the complementary methylene from the two nucleotides. This mechanism guarantees the correct duplication of the genetic material and allows you to, each one of the cellular results of the cellular division process, contain a complete copy the Beecho material.