What is RNA short for?

Ribonucleic acid is the full form of RNA, which is essential for various biological roles in coding, decoding, regulation, and expression of genes. Unlike DNA, which is typically double-stranded, RNA is usually single-stranded and plays a critical role in the synthesis of proteins by acting as a messenger between DNA and ribosomes, where proteins are produced.

This understanding reflects the importance of RNA in molecular biology and genetic expression, making it a fundamental component of cellular processes. The other choices refer to different concepts or types of nucleic acids that do not accurately depict what RNA stands for. Ribonucleic acid encompasses a broader function and structure than the alternatives presented.