What are the roles of the three types of RNA involved in protein synthesis as described in the chapter?

The three types of RNA involved in protein synthesis are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). mRNA carries the genetic instructions from DNA to the cytoplasm for protein synthesis. tRNA transports specific amino acids to the ribosome, where they are added to the growing polypeptide chain, while rRNA combines with proteins to form ribosomes, the sites of protein synthesis.