Can someone explain the steps in DNA Transcription?
Transcription 1) The DNA double helix unwinds and the two strands separate. 2) Free RNA nucleotides are assembled using ONE of the two DNA strands as the template. 3) The RNA nucleotides link up to form a strand of RNA. 4) The RNA separates from the DNA. 5) The DNA double helix reforms. The enzyme RNA polymerase is responsible for stages 1 to 3. The RNA produced as a result of transcription carries the information needed for making a polypeptide out into the cytoplasm, so it is called a messenger RNA (mRNA). The mRNA molecule has a base sequence complementary to the transcribed strand and identical to the other DNA strand except that Uracil replaces Thymine.
