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

Question

Quizplus · Accepted Answer

Immunoglobulins are thought to have evolved from cell-adhesion receptors in invertebrates, indicating an ancient origin of the immune system's ability to recognize and bind specific molecules.

What Is Thought to Be the Origin of Immunoglobulins