The process that uses the code on an RNA molecule to make a protein is called translation.

Here's a breakdown:

1. Transcription: DNA, the genetic blueprint, is copied into messenger RNA (mRNA).

2. Translation: The mRNA travels from the nucleus to the ribosomes in the cytoplasm. Here, the mRNA code is "read" by ribosomes, and the appropriate amino acids are linked together in a specific order to form a polypeptide chain. This chain folds into a functional protein.

In essence, translation is the process of converting the language of nucleotides (RNA) into the language of amino acids (protein).