Input (grade 13): However, two B vitamins, niacin and riboflavin, bind with adenine to form the essential cofactors nicotinamide adenine dinucleotide (NAD) and flavin adenine dinucleotide (FAD), respectively.
Output (grade 12): However, two B vitamins, niacin and riboflavin, bind with adenine to form the essential cofactors NAD and FAD respectively.