In the human immune system, a difference between T-cell receptors and immunoglobulins is that T-cell receptors have
A) twice as many binding sites.
B) more subtypes.
C) a larger degree of polymerisation.
D) only two polypeptide chains.
E) four polypeptide chains.

Question

Quizplus · Accepted Answer

T-cell receptors consist of only two polypeptide chains, whereas immunoglobulins (antibodies) are typically made up of four polypeptide chains (two heavy chains and two light chains).

In the Human Immune System, a Difference Between T-Cell Receptors