Niacin can be synthesised in human beings from
Q. Niacin can be synthesised in human beings from
A. Histidine
B. Phenylalanine
C. Tyrosine
D. Tryptophan
Answer: Tryptophan
A. Histidine
B. Phenylalanine
C. Tyrosine
D. Tryptophan
Answer: Tryptophan