Tag Archives: Protein biosynthesis

DNA & Heredity Transcription & Translation

Protein Synthesis Involves Transcription & Translation

  • The 2 steps of protein synthesis:
    Process Where Major Components Notes
    Transcription In the nucleus DNA gene
    RNA polymerase
    Gene is activated.
    A copy of the code is made from RNA (m-RNA)
    m-RNA leaves the nucleus, goes to cytoplasm.
    Translation In the cytoplasm, on the ribosomes m-RNA
    Ribosomes
    Peptidyl transferase enzyme
    Transfer RNAs
    Ribosome decodes the m-RNA and makes the correct protein.
  • Keeping the main copy of the genes in the nucleus protects it from damage
  • There are many DNA repair mechanisms in the nucleus