Ribonuclease A is widely used in molecular biology research for its ability to degrade RNA. It is commonly employed to remove RNA from DNA samples during nucleic acid purification, ensuring the isolation of high-quality DNA for downstream applications like PCR or sequencing. In protein studies, it serves as a model enzyme for understanding protein folding, stability, and enzymatic mechanisms due to its well-characterized structure and function. Additionally, Ribonuclease A is utilized in cell culture to prevent RNA contamination, maintaining the integrity of experimental results. Its specificity for single-stranded RNA makes it a valuable tool in studying RNA metabolism and structure.