What is the primary role of mRNA in translation?

The primary role of mRNA in translation is to carry genetic information copied from DNA. During the process of transcription, mRNA is synthesized based on the sequence of a gene found in the DNA. This mRNA strand serves as a template for the synthesis of proteins during translation, occurring in the ribosome. Each three-nucleotide sequence on the mRNA, known as a codon, corresponds to a specific amino acid, guiding the order in which amino acids are assembled into a polypeptide chain. This function is crucial, as it ensures that the correct proteins are produced, reflecting the genetic instructions encoded in the organism's DNA.

In contrast, other roles mentioned in the options do not accurately describe mRNA's function in translation. For example, transferring amino acids and helping in ribosome formation are functions associated with tRNA and ribosomal RNA, respectively, while bringing DNA information to the nucleus is a mischaracterization of mRNA's role, as mRNA actually conveys information from the nucleus to the ribosome for protein synthesis.