Final answer:
The correct statement is that mRNA, tRNA, and rRNA all play roles in the process of protein synthesis, translating genetic information into proteins. They are essential for the transfer of genetic code from DNA, delivery of amino acids, and peptide bond formation in protein assembly.
Step-by-step explanation:
The correct statement regarding RNA is: Messenger RNA, transfer RNA, and ribosomal RNA play a role in protein synthesis. These different forms of RNA are crucial for translating the genetic instructions from DNA into functional proteins. Messenger RNA (mRNA) carries the genetic code from the DNA in the cell nucleus to the ribosomes where proteins are synthesized. Transfer RNA (tRNA) brings the appropriate amino acids to the ribosome to be added to the growing protein chain. Ribosomal RNA (rRNA) is a significant component of the ribosome itself, facilitating the proper alignment of mRNA and catalyzing the formation of peptide bonds between amino acids. Thus, these three types of RNA work together in the complex process of protein synthesis.