Transcription

Cards (5)

  • When does transcription occur?
    During protein synthesis
  • Where does transcription occur?
    Nucleus
  • What are the three stages of transcription?:
    1. Double helix unwinds, one strand acts as a template
    2. mRNA is produced
    3. mRNA attaches to ribosome
  • What happens in the first stage of transcription?
    • double helix unwinds
    • DNA unzips / weak hydrogen bonds break into two separate strands
    • one strand acts as a template
  • What happens during the second stage of transcription?
    • Free floating RNA nucleotides from nucleoplasm
    • Join to their complementary DNA base triplets or A-U and G-C
    • This produces mRNA