Can You Make Your Own Polypeptide?
Chapter 8: Protein Synthesis

The process by which mRNA is transcribed into a polypeptide involves codons consisting of triplets of nitrogenous bases. You can model this process if you…

Try This

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1. The base sequence of the gene coding for a short polypeptide is:
   TAC   CTA   CGC   TAG   GCG   ATG GAC   ATT.
2. List the mRNA codons involved in this translation.
3. Using the chart on page 187 of Biology: The Web of Life, select the sequence of amino acids that make up this polypeptide chain.

Analyze Your Results

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1. What is the translation of TAC and ATT?
2. What are the similarities and differences between the DNA code and the tRNA codons?
3. What is the amino acid sequence in the polypeptide you constructed?

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