Transcription of DNA Transcription The process by which genetic information encoded in DNA is read and used to synthesize RNA in the nucleus of the cell 1.Several turns of the DNA double helix unwind,forming a "bubble" and exposing the bases of the two strands 2.Ribonucleotides line up in the proper order by hydrogen bonding to their complementary bases on DNA 3.Bond formation occurs in the 53'direction 4.The growing RNA molecule unwinds from DNA DNA sense strand mRNA DNA antisense strandTranscription ▪ The process by which genetic information encoded in DNA is read and used to synthesize RNA in the nucleus of the cell 1. Several turns of the DNA double helix unwind, forming a “bubble” and exposing the bases of the two strands 2. Ribonucleotides line up in the proper order by hydrogen bonding to their complementary bases on DNA 3. Bond formation occurs in the 5′→3′ direction 4. The growing RNA molecule unwinds from DNA Transcription of DNA