Answer:
mRNA
Explanation:
mRNA, the messenger RNA is the type of RNA that serves as a template for synthesis of proteins. mRNA is formed by the process of transcription that occurs inside the nucleus. The mature mRNA leaves the nucleus and enter cytoplasm to join ribosome.
The sequence of the nucleotide of mRNA is read in the form of genetic code and each triplet codon signifies specific amino acid to be added to the newly synthesized protein. For the purpose, the tRNAs deliver the specific amino acids to the mRNA-ribosome complex while rRNA are the structural components of ribosomes.