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Biological Coding Theory

Biological Coding Theory. DNA: Source Code RNA: Object-File Protein: Executable/Running Code. Slide with Channel Schematics. DNA. RNA------------------------. AminoAcid ->Protein. Digital world vs the RNA world. Digital bits: 2 states (0,1) RNA bits: 4 states (U,C,G,A)

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Biological Coding Theory

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  1. Biological Coding Theory DNA: Source Code RNA: Object-File Protein: Executable/Running Code

  2. Slide with Channel Schematics DNA RNA------------------------ AminoAcid ->Protein

  3. Digital world vs the RNA world • Digital bits: 2 states (0,1) • RNA bits: 4 states (U,C,G,A) • Digital byte: 2^8 = 256 possibilities • RNA byte: ‘Codon’ 3 digits: 4^3 = 64 • BUT: Only 20 are used – 44 left for redundancy

  4. Decoding UCA, UCC, UCU, UCG + AGU, AGC ‘1 bit error correction) all code Serine => Even if you transmit UCA and UCC arrives at decoder -> still the right result BUT: UGG is the only combination that leads to Tryptophan

  5. More failover preventions • DNA Helix is redundant in itself – similar to a RAID1 system • two copies of each chromosome

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