Which of the following is a pentameric immunoglobulin and is produced first in a primary response to an antigen?

IgG

No worries! We‘ve got your back. Try BYJU‘S free classes today!

IgM

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

IgA

No worries! We‘ve got your back. Try BYJU‘S free classes today!

IgE

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A IgM
IgM is the first immunoglobulin class produced in a primary response to an antigen. It is also the first immunoglobulin to be synthesised by a neonate. The pentameric nature of IgM confers higher valency on the molecule, and it can bind antigens like virus particles and RBC better since there are many antigen binding sites which can work simultaneously.
Thus, the correct answer is option B.

Suggest Corrections