NEET 2021 · ChemistryVitaminsPrevious Year Question
Deficiency of red blood cells (pernicious anaemia) is the deficiency disease of
Answer: (C) Vitamin B12. \textbf{Answer:} (C) Vitamin B12 deficiency causes pernicious anaemia (a deficiency of healthy RBCs).
- A.Vitamin B1
- B.Vitamin B2
- C.Vitamin B12✓
- D.Vitamin B6
Correct Answer
(C) Vitamin B12
Solution & Explanation
\textbf{Answer:} (C) Vitamin B12 deficiency causes pernicious anaemia (a deficiency of healthy RBCs). \textbf{Solution:} Vitamin B12 (cyanocobalamin) is essential for the maturation of red blood cells. Its deficiency leads to pernicious anaemia, in which RBCs are reduced in number and deficient in haemoglobin. Vitamin B1 deficiency causes beri-beri, B2 (riboflavin) causes cheilosis, and B6 (pyridoxine) causes convulsions. Hence option C is correct.
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