Here's how it works:

1. DNA contains the genetic code: DNA is a long molecule composed of four different building blocks called nucleotides. The sequence of these nucleotides forms the genetic code, which contains the instructions for building all the proteins in an organism.

2. Genes are specific sections of DNA: Each gene within the DNA molecule holds the code for a single protein.

3. Transcription: DNA to RNA: The first step in protein synthesis is transcription, where the DNA sequence of a gene is copied into a messenger RNA (mRNA) molecule.

4. Translation: RNA to Protein: The mRNA molecule then travels out of the nucleus to the ribosomes, where translation takes place. Ribosomes read the mRNA code and use it to assemble amino acids into a specific sequence, creating a protein.

So, DNA provides the blueprint, while RNA acts as the intermediary messenger, and ribosomes are the protein-building factories.