Small RNA

Small RNA refers to a class of molecules within cells that play critical roles in regulating gene expression and maintaining cellular functions. These tiny strands of RNA are typically 20-30 nucleotides long and include types like microRNAs (miRNAs) and small interfering RNAs (siRNAs). They help control which genes are turned on or off, influencing everything from growth to stress responses. By binding to messenger RNA (mRNA), small RNAs can prevent the production of specific proteins, thus shaping how cells respond to their environment and contributing to various biological processes, including development and disease.