What process is probably responsible for the origin of the three parts of the constant portion of the IgG heavy chain?
A)inversion
B)duplication
C)deletion
D)point mutation
E)nonsense mutation

Question

Quizplus · Accepted Answer

The origin of the three parts of the constant portion of the IgG heavy chain is most likely due to duplication. Gene duplications can result in multiple copies of a gene, each of which can then diverge in sequence and function, leading to the generation of new protein domains. Gene duplication is a common process in evolution and has been implicated in the diversification of many gene families, including the immunoglobulin gene family.

What Process Is Probably Responsible for the Origin of the Three