NEET2012ZoologyDigestion and AbsorptionActual
Deficiency of vitamin- B ₁₂ causes
Options
- Acheilosis
- Bthalassemia
- Cberi-beri
- Dpernicious anaemia
Correct answer
D. pernicious anaemia
Step-by-step solution
The deficiency (hypovitaminosis) of vitamin- B ₁₂ or cyanocobalamine causes pernicious anaemia, demyelination of nerve fibres and glossitis (inflammation of tongue).