Multiple Choice
Class II MHC molecules are found on which of the following cell types?
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21. The Immune System
Major Histocompatibility Complex Molecules
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which markers are found on all nucleated cells?
A
MHC class I.
B
MHC class II.
C
CD4.
D
CD8.
Verified step by step guidance1
Understand the concept of Major Histocompatibility Complex (MHC) molecules. MHC molecules are proteins found on the surface of cells that play a crucial role in the immune system by presenting antigens to T cells.
Differentiate between MHC class I and MHC class II molecules. MHC class I molecules are present on all nucleated cells, whereas MHC class II molecules are typically found on antigen-presenting cells such as macrophages, dendritic cells, and B cells.
Recognize that CD4 and CD8 are co-receptors found on T cells, not on all nucleated cells. CD4 is found on helper T cells, while CD8 is found on cytotoxic T cells.
Identify that MHC class I molecules are the markers found on all nucleated cells. They are essential for the immune system to recognize cells as 'self' and to detect infected or cancerous cells.
Conclude that MHC class II, CD4, and CD8 are not markers found on all nucleated cells, as they have specific roles and locations within the immune system.
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