What is the significance of the start codon?

Practice Questions

Q1
What is the significance of the start codon?
  1. It signals the end of translation
  2. It codes for a stop signal
  3. It initiates protein synthesis
  4. It regulates gene expression

Questions & Step-by-Step Solutions

What is the significance of the start codon?
  • Step 1: Understand that a codon is a sequence of three nucleotides in mRNA.
  • Step 2: Identify the start codon, which is AUG.
  • Step 3: Know that the start codon signals the beginning of the process called translation.
  • Step 4: Recognize that translation is when the cell makes proteins from mRNA.
  • Step 5: Learn that the start codon also codes for the amino acid methionine, which is the first amino acid in the protein chain.
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