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6.5 Protein synthesis - Coggle Diagram
6.5 Protein synthesis
Translation
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Stages
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tRNA with anticodon complementary to first codon in mRNA arrives in ribosome and the bases bind via hydrogen bonds
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Ribosome moves mRNA one codon forwards, process repeats
When stop codon is reached, polypeptide leaves ribosome for formation of secondary and tertiary structure
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Transcription
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Stages
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As phosphodiester bonds are formed, RNA polymerase breaks hydrogen bonds to separate mRNA strand from DNA
When stop codon is reached, RNA polymerase releases mRNA
Once complete, mRNA can be modified
Modification
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Alternative splicing
After introns are removed, exons can be rejoined in different positions
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