noun🔗ShareÁcido ribonucleico, ARNA derivative of DNA having ribose in place of deoxyribose, and uracil in place of thymine; its primary function is in the transcription of genetic material and subsequent synthesis of protein.""The instructions from DNA are copied into a type of genetic material called ribonucleic acid, or RNA, which then helps the cell build proteins." "Las instrucciones del ADN se copian en un tipo de material genético llamado ácido ribonucleico, o ARN, que luego ayuda a la célula a construir proteínas.biochemistrybiologycompoundmedicinesubstanceorganismphysiologyfunctionChat with AIVocabulary GamePractice Reading