Unknown B12 is needed in which step of folate synthesis- A Tetrahydrofoiate to folinic acid B Methyl tetrahydrofolate to tetrahydrofolate C Formyl tetrahydrofolate to tetrahydrofolate D Methylene tetrahydrofolate to methyltetrahydro- folate 💡 Explanation B12 is needed in which step of folate synthesis- ✓ Correct Answer: B. Methyl tetrahydrofolate to tetrahydrofolate