* Exons: These are the coding regions of a gene. They contain the genetic information that will be translated into a protein.

* Introns: These are non-coding regions of a gene. They are removed from the pre-mRNA molecule before it is translated.

The Process:

1. Transcription: DNA is transcribed into pre-mRNA, which contains both exons and introns.

2. Splicing: Introns are removed from the pre-mRNA, and the remaining exons are joined together to form mature mRNA.

3. Translation: The mature mRNA is then translated into a protein by ribosomes.

Therefore, only the exons, which contain the coding information, are translated into protein.