Here's why:
* mRNA carries the genetic code: mRNA is a copy of a gene's DNA sequence, carrying the instructions for building a specific protein.
* Ribosomes read mRNA: Ribosomes, the protein-making machinery in cells, bind to mRNA and "read" the genetic code.
* tRNA brings amino acids: Transfer RNA (tRNA) molecules bring the correct amino acids to the ribosome, following the instructions on the mRNA.
* Protein synthesis: The ribosome links the amino acids together in a specific order, creating a polypeptide chain, which folds into a functional protein.
So, while other types of RNA play important roles in protein synthesis, mRNA is the central player in translation, serving as the blueprint for protein construction.
