In which cellular structures can RNA be found?

RNA can be found in multiple cellular structures and is essential for various functions within the cell. It is located in the nucleus, where it is synthesized during transcription from DNA. Specific types of RNA, such as messenger RNA (mRNA), are produced in the nucleus before traveling to the cytoplasm.

In the cytoplasm, RNA serves as a crucial component of ribosomes, which are the sites of protein synthesis. Ribosomal RNA (rRNA) is a key structural and functional component of ribosomes. Additionally, transfer RNA (tRNA) is also found in the cytoplasm, where it plays a vital role in translating the genetic information carried by mRNA into proteins.

Thus, RNA is present in the nucleus for its synthesis, in the cytoplasm for translation processes, and as part of ribosomal structures. The correct answer reflects this comprehensive presence of RNA across these important cellular locations.