Here's why:
* Gene: A gene is a specific segment of DNA that contains the instructions for building a particular protein.
* Codon: A codon is a sequence of three DNA bases (a triplet) that codes for a specific amino acid. A protein is made up of many amino acids, so a gene contains a series of codons.
* Exon: An exon is a coding region within a gene. Genes can have multiple exons.
Let me know if you'd like to learn more about the process of how genes code for proteins!
