If no primer DNA was given, the following scientist could not have synthesized DNA. 

(A) Ochoa 

(B) Okazaki 

(C) Kornberg 

(D) Monod

An anti-vitamin for folic acid is 

(A) Amethoptesin 

(B) Dicoumarol 

(C) Pyrithoamine 

(D) Isoniazid 

Folic acid contains 

(A) Pteridine 

(B) p-Amino benzoic acid 

(C) Glutamic acid 

(D) All of these

The sulphur-containing vitamins among the following B-Vitamin is 

(A) Thiamine 

(B) Riboflavin 

(C) Niacin 

(D) Pyridoxine

Conversion of retinal into ritonal requires the presence of 

(A) NADH 

(B) NADPH 

(C) FADH₂ 

(D) Lipoic acid

Folic acid or folate consists of the 

(A) Base pteridine, p-amino benzoic acid and asparate 

(B) Base purine, p-amino benzoic acid and glutamate 

(C) Base pteridine, p-amino benzoic acid and glutamate 

(D) Base purine, p-hydroxy benzoic acid and glutamate

Reduction of D-ribonucleotides to D-deoxy ribonucleotides in prokaryotes requires 

(A) 5, 6 dimethyl benzimindazole cobamide 

(B) Thiredoxin 

(C) Tetra hydrobiopterin 

(D) Tetra hydrofolate

Daily requirement of vitamin C in adults is about 

(A) 100 mg 

(B) 25 mg 

(C) 70 mg 

(D) 100 mg 

The pellagra preventive factor is 

(A) Riboflavin 

(B) Pantothenic acid 

(C) Niacin 

(D) Pyridoxine

Sterilized milk is devoid of 

(A) Vitamin A 

(B) Vitamin B₁ 

(C) Vitamin C 

(D) Vitamin D