Describe the function of each of the following in protein synthesis: rrna, mrna, trna

mRNA allows for the transcription of DNA onto a primary transcript which then travels to the ribosome.

rRNA makes up the structure of the ribosome, where translation occurs.

tRNA transports amino acids to the ribosome, and joins them onto the end of the forming polypeptide chain. tRNA has an anticodon which is complimentary to the codon of mRNA it is translating.