The DNA genes serves as a template for complementary base-paring during the process of transcription, the strand of DNA is copied into a new molecule of messenger RNA (mRNA). Transcription is carried out by the RNA polymerase and the transcription factors, those factors bind to specific DNA sequences (of the open strand) called enhancer and promoter sequences in order to signal to the RNA polymerase the right site to link in the strand of DNA for the transcription. The union of polymerase to transcription factors form a transcription initiation complex, that begins the mRNA synthesis by matching complementary bases to the original DNA strand. The mRNA is elongated and, once the strand is completely synthesized, transciption is terminated. The mRNA formed will serve as a blueprint for protein synthesis in the trabslation process that will happen in the cytoplasm.
