The reason for the presence of both constant and variable regions in antibody molecules. Introduction: Antibody is a protective protein, secreted by the body’s immune system in response to foreign substances or antigens. Antibody is also known as immunoglobin (Ig). Antibody is essential to the body’s immune system. There are five types of antibodies that are IgG, IgM, IgA, IgD, and IgE, secreted in response to the body’s immune system and mechanism. After the first exposure to an antigen, the naïve B cells divide into plasma cells and memory B cells. The plasma cells then secrete an antibody specific to the antigens. These antibodies act on the antigen by killing them.

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Chapter 36.4, Problem 1Q

Summary Introduction

To determine:

The reason for the presence of both constant and variable regions in antibody molecules.

Introduction:

Antibody is a protective protein, secreted by the body’s immune system in response to foreign substances or antigens. Antibody is also known as immunoglobin (Ig). Antibody is essential to the body’s immune system. There are five types of antibodies that are IgG, IgM, IgA, IgD, and IgE, secreted in response to the body’s immune system and mechanism. After the first exposure to an antigen, the naïve B cells divide into plasma cells and memory B cells. The plasma cells then secrete an antibody specific to the antigens. These antibodies act on the antigen by killing them.

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