Missense mRNA refers to a type of RNA molecule that contains an incorrect or altered codon sequence, resulting in a non-functional protein being produced during translation. Synonyms for missense mRNA include altered mRNA, error-containing mRNA, and mutated mRNA. These terms all describe the same underlying phenomenon of mRNA containing a sequence error, which can have various deleterious effects on cellular function. Missense mutations are known to contribute to many diseases, including cancer and inherited genetic disorders. Developing therapies that can correct missense mRNA sequences is an active area of research in molecular biology, with the potential to provide new treatments for a wide range of diseases.