What is the primary function of mRNA in the process of protein synthesis?

The primary function of mRNA, or messenger RNA, in the process of protein synthesis is to act as a template for the attachment of tRNA and the linking of amino acids. During the process of translation, mRNA carries the genetic information from DNA, which outlines the specific sequence of amino acids that need to be assembled to form a protein.

As the ribosome reads the sequence of codons on the mRNA, tRNA molecules bring the corresponding amino acids to the ribosome. Each tRNA recognizes specific codons on the mRNA through its anticodon and ensures that the correct amino acids are added in the right order. This linking of amino acids continues until the entire protein is synthesized, and the sequence of the mRNA dictates the structure and function of the resulting protein.

This role of mRNA is crucial as it translates the genetic code into a physical structure, bridging the gap between the genetic information stored in DNA and the functional proteins that perform vital tasks in cells. Other functions mentioned in the options pertain to the roles of tRNA or ribosomes but do not accurately describe the specific function of mRNA in the protein synthesis process.