What role does RNA play in the cell?

RNA plays a crucial role in the process of transferring genetic information for protein synthesis. This function primarily revolves around the different types of RNA, including messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).

During protein synthesis, mRNA is synthesized from DNA in a process called transcription, where the genetic blueprint contained in DNA is copied into a complementary RNA format. This mRNA then serves as a template that carries the genetic information from the nucleus to the ribosomes, which are the cellular machinery that synthesize proteins.

At the ribosome, tRNA molecules bring the corresponding amino acids to the mRNA template, facilitating the translation of the genetic code into a sequence of amino acids, ultimately forming a protein. The role of RNA in this transfer of genetic information is vital, as it acts as the intermediary that connects the genetic instructions stored in DNA to the actual production of proteins, which are essential for various cellular functions and activities.

In contrast to other choices, catalyzing metabolic reactions is typically the role of enzymes, which are proteins. Carrying the genetic blueprint refers primarily to DNA, not RNA, which is more about expression. Storing energy for cellular processes is a function of molecules like ATP,