Here's a breakdown:

* Ribosomes are complex molecular machines found in all living cells. They are responsible for translating the genetic code carried by messenger RNA (mRNA) into the amino acid sequences that make up proteins.

* mRNA is a copy of a gene's DNA sequence that carries the instructions for building a specific protein.

* Amino acids are the building blocks of proteins.

The ribosome reads the mRNA sequence, one codon (a three-nucleotide sequence) at a time. Each codon corresponds to a specific amino acid. As the ribosome moves along the mRNA, it brings together the correct amino acids to form a chain. This chain eventually folds into a three-dimensional structure, forming the functional protein.

So, while DNA contains the blueprint for proteins, the ribosome is the actual "factory" where proteins are assembled.