Immunology #3 - Antibody Structure And Diversity (Part 1)

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| By Kmccor2008

Kmccor2008

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1/5 Questions

Which antibody is transferred to the fetus?
- IgA
- IgD
- IgM
- IgG

About This Quiz

Explore key concepts in immunology with 'Immunology #3 - Antibody Structure and Diversity (part 1)'. This quiz assesses understanding of antibody immunogenicity, structure, diversity, and function, crucial for students and professionals in medical and biological sciences.

2.

All immunogens are NOT antigens
- True
- False
Correct Answer

A. False

Explanation

All immunogens ARE antigens but all antigens are NOT immunogens

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1
3.

How many CDRs occur in each variable region?
- 1
- 2
- 3
- 4
Correct Answer

A. 3

Explanation

The variable region of a CDR (Complementary Determining Region) is responsible for the antigen recognition and binding in antibodies. In this question, it is stated that there are multiple variable regions. Since the answer is 3, it suggests that there are 3 CDRs occurring in each variable region. This implies that each variable region has 3 distinct regions responsible for antigen binding, making it a total of 9 CDRs.

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4.

The variable region of the immunoglobulin determines the effector functions
- True
- False
Correct Answer

A. False

Explanation

The constant region determines effector functions; the variable region determines antigen specificity

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5.

Which portion of the antibody is the most immunogenic?
- Variable region
- Fragment Crystallizable
- Fragment Antigen Binding
- Hinge Region
Correct Answer

A. Fragment Crystallizable

Explanation

The Fragment Crystallizable (Fc) portion of the antibody is the most immunogenic. This is because the Fc region is responsible for binding to immune cells and triggering an immune response. It interacts with receptors on immune cells, such as Fc receptors, and activates various immune pathways. The Fc region is highly conserved among different antibodies and is recognized by the immune system as a foreign antigen, leading to the production of antibodies against it. Therefore, the Fc region is considered to be the most immunogenic portion of the antibody.

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Mar 20, 2023

Quiz Edited by
ProProfs Editorial Team
Sep 29, 2012

Quiz Created by
Kmccor2008

Immunology #3 - Antibody Structure And Diversity (Part 1)

Which antibody is transferred to the fetus?

Quiz Preview

All immunogens are NOT antigens

How many CDRs occur in each variable region?

The variable region of the immunoglobulin determines the effector functions

Which portion of the antibody is the most immunogenic?