This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
High molecular weight proteins in cataractous lens seen only in humans: 
Select and explain. 
A. HM 1 and 2, B. HM 2 and 3, C. HM 2 and 4, D. HM 3 and 4
D: HM 3 and 4
Answer: D: HM 3 and 4 
Explanation: Ans: D. HM 3 and 4(Ref The Eve 3/e p305-307: Biochemistry of Eve by David R/p28)High molecular weight proteins in cataractous lens only in humans = HM 3 & 4.HM3 & HM4:Insoluble high molecular weight proteins.Found in cataractous lens.