International A Level Biology / Proteins and DNA

Translation: mRNA to polypeptide revision notes

Edexcel International A Level Biology (YBI11), chapter 5: Proteins and DNA, specification point 2.13. Part of the full course.

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Translation uses the code in mRNA to build a polypeptide at a ribosome. The order of mRNA codons determines the order of amino acids in the chain.

More lessons in Proteins and DNA

• Enzymes: biological catalysts
• Active sites, specificity and induced fit
• Core practical 4: measuring the initial rate of an enzyme reaction
• Temperature, pH, enzyme and substrate concentration
• Nucleotides, DNA and RNA
• Semi-conservative DNA replication
• Meselson and Stahl: proving semi-conservative replication
• The genetic code
• Transcription: DNA to mRNA