47.

Vitamin B12 deficiency can result in

1. a decrease of N5-methyl-tetrahydrofolate.
2. megaloblastic anemia.
3. a buildup of S-adenosyl-methionine.
4. decreased purine biosynthesis.

One or more answers are correct. Click on:

• a. if 1, 2, and 3 are correct
• b. if 1 and 3 are correct
• c. if 2 and 4 are correct
• d. if only 4 is correct
• e. if all are correct