I've looked up many textbooks regarding immunology and antibodies. all of them share one important thing: The antibody composed of two chains (Heavy chain) and (Light chain) Light chain: 1- it is called light because of its molecular weight (25,000 approximately) comparably to heavy chain molecular weight. 2 - it has one variable region and one constant region. 3 - it has two subtypes (kappa) and (lambda) may exist either way but not together. Heavy chain: 1 - it is called heavy because of its molecular weight (50,000 approximately) comparably to light chain molecular weight. 2 - it has one variable region and 3 constant regions. 3 - it has 5 subtypes which determine the type of Immunoglobulins (M for mu in IgM, A for alpha in IgA, G for gamma in IgG, E for epsilon in IgE, D for delta in IgD)

This was a very helpful video, thank you!

Wonderful video!

The 1st comment....... YOU ARE GREAT MARVEL SIR...GREAT JEWEL.....💎💎💎💎💎💎💎💎💎💎 THANKS SIR🖐🖐🖐🖐🖐

The heavy and light chains, as well as the variable and constant regions that are shown here are not correct.

MashaAllah

Wait isnt the light chain only the short single strands?

Nice teching ......it is very helpful to us by digramatic representation

What do you mean by the term navigator ??????

🌺🌺🌺🌺🌹🌹🌹🌹💐💐

Kuch nahi samaja