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Molecular Biology (2.7 DNA Replication, Translation & Transcription…

- - - - mRNA binds to small subunit of ribosome. Each triplet of mRNA is a codon
      - Activated tRNA carry anticodons that complement the codons
      - Hydrogen bond form between complementary bases of mRNA and tRNA that brings the large ribosomal subunit to combines with small subunit.
      - ribosomes catalyse formation of peptide bond between 2 adjacent amino cids to form dipeptide
      - the previous tRNA is released
  - - - original strand
      - new strand
    - - helicase
        
        unwind the double helix strand
        
        by breaking the weak hydrogen bond between the bases
      - DNA Polymerase
        
        linking new nucleotides into place according to the complementary base pair
  - - - RNA Polymerase unwind the DNA
      - RNA Polymerase use energy to assemble the nucleotide according to complementary base pairing except for (Adenine-Uracil)
      - mRNA separates from DNA, RNA Polymerase zipped up the DNA double helix
  - - - lead to
        
        transfer of gene
      - Because
        
        Same genetic code
        
        same base
    - - triplet of bases
      - 1 codon for 1 amino acid
      - same order of codons lead to same amino acids
- - - - Pentose sugar : Deoxyribose
      - Adenine, Thymine, Guanine, Cytosine
      - Double stranded
    - - Adenine, Uracil, Guanine, Cytosine
      - Single stranded
      - Pentose sugar : Ribose