This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Biochemistry
Iodine gives red colour with 
Select and explain. 
A. Starch, B. Dextrin, C. Inulin, D. Glycogen
D: Glycogen
Answer: D: Glycogen 
Explanation: Amylose: Gives blue with iodine testAmylopectin: Gives reddish violet with iodine testGlycogen: With iodine-: deep red colour