The immunoglobulin having highest molecular weight is:
Correct Answer: IgM
Description: Ans. B. Ig MImmunoglobulins, a specialized group of proteins are mostly associated with gamma globulin fraction (on electrophoresis) of plasma proteins. All the Ig molecules consist of two identical heavy (H) chains and two identical (L) chains. Each have constant and variable regions. Humans have five classes of Ig- IgG, IgA, IgM, IgD and IgE. Out of these IgM is the largest composed of 5-Y shaped units held together by a J polypeptide chain. Due to its largest size, IgM cannot traverse blood vessels, hence it is restricted to the blood stream.
Category:
Biochemistry
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now