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Ollie O'Keeffe
Mind Map by , created more than 1 year ago

Mind map of transcription & translation for OCR A2 level biology

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Ollie O'Keeffe
Created by Ollie O'Keeffe almost 11 years ago
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10lmitchell
10lmitchell
almost 9 years ago
Screen shot it :)
heal.the.world
heal.the.world
almost 11 years ago
Great thanks, how can I save this
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A2 Level Biology:Transcription & TranslationRNA PolymeraseEnzymeBinds to gene at StartcodonBreaks hydrogen bonds between DNAstrandsLines up free-floating DNA nucleotide bases to DNA templatestrandBases bind to DNA template strand by complementary basepairingOnce RNA Polymerase has passed, the DNA heilx begins toreformHydrogen bonds between basesmRNASingle polynucleotidestrandFormed in thenucleusCombines with tRNA incytoplasmRibose sugar, phosphate group, nucleotidebasetRNASingle polynucleotidestrandClover shapeHeld in shape by hydrogen bonds betweenbasesFound incytoplasmCombines with mRNA in a ribosome, incytoplasmAnticodon at oneendSequence of 3 DNA NucleotidebasesComplementary to a specific triplet onmRNAAmino Acid binding site at otherendTranslation1. mRNA enters ribosome2. tRNA binds to the first codon by complementary basepairingEach tRNA molecule has a specific amino acidattatched3. A second tRNA binds to the second codon on mRNA4. The two amino acids (one on each tRNA) form a peptide bond betweenthem5. A third tRNA binds to the next codon onmRNA6. The first tRNA detatches and leaves the ribosome (leaving its amino acidbehind)6. This tRNA's amino acid forms a peptide bond to the second aminoacid7. This continues, forming a chain of amino acids, held together by peptidebondsNucleotide base triplets on mRNA are called CODONSRibosomeFormed of rRNA and complexproteinsrRNA = RibosomalRNALocated in cytoplasm ofcellsActs as site of proteinsynthesismRNA & tRNA combinehereDouble click this nodeto edit the textClick and drag this buttonto create a new node