What is the role of RNA in the process of protein synthesis?

RNA plays a crucial role in protein synthesis by acting as the molecule that copies and delivers the genetic code from DNA to the ribosomes, where proteins are constructed. This process begins with transcription, where messenger RNA (mRNA) is synthesized from a DNA template. The mRNA serves as a temporary and mobile copy of the genetic information that can be transported out of the nucleus into the cytoplasm. Once in the cytoplasm, mRNA is translated into a sequence of amino acids, forming proteins.

This process is essential for cell function and the expression of genes, allowing the information stored in the DNA to be utilized in forming the diverse proteins necessary for various biological processes. The specific function of copying and delivering the code delineates the distinct and critical role that RNA fulfills in bridging the gap between DNA and protein synthesis, which underlines why this choice effectively captures the essence of RNA's involvement in the process.

The other choices do not accurately represent the role of RNA; for example, while transcription is indeed a part of RNA's function, it does not encompass the overall role of RNA in delivering the code from DNA to the ribosomes. Furthermore, RNA does not function as an energy source or in the transport of nutrients, which are roles fulfilled by other