Which disease is caused by deficiency of Vitamin A?

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Q: 312 (SSC/NA)
Which disease is caused by deficiency of Vitamin A?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,121,9,5,121,3,1

keywords: 

{'deficiency': [5, 0, 10, 2], 'night blindness': [3, 0, 0, 1], 'disease': [4, 2, 0, 0], 'beri': [0, 0, 1, 0]}

Option 1: Beri-Beri is not caused by a deficiency of Vitamin A. Beri-Beri is a disease caused by a deficiency of thiamine (Vitamin B1).

Option 2: Night blindness is caused by a deficiency of Vitamin A. Vitamin A is essential for the production of rhodopsin, a pigment in the retina that helps with vision in dim light. A lack of Vitamin A can lead to difficulty seeing in low light conditions, which is known as night blindness.

Option 3: Rickets is not caused by a deficiency of Vitamin A. Rickets is a disease caused by a deficiency of Vitamin D, which is important for the absorption of calcium and phosphorus.

Option 4: Pellagra is not caused by a deficiency of Vitamin A. Pellagra is caused by a deficiency of niacin (Vitamin B3).

Therefore, the correct answer is option 2: Night blindness.