What is thought to be the origin of immunoglobulins?
A)They may be derived from immune system molecules in invertebrates.
B)They may be derived from cell-adhesion receptors in invertebrates.
C)They may be derived from cell-adhesion receptors in fish.
D)They may be derived from cell-adhesion molecules in amphibians.
E)They may be derived from immune system molecules in reptiles.

Question

Quizplus · Accepted Answer

Immunoglobulins are believed to have originated from cell-adhesion receptors in invertebrates, which evolved to perform immune functions.

What Is Thought to Be the Origin of Immunoglobulins