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  • Read the following statements: 1. All the individual of the same species has the same allele of MHC genes. 2. Professional antigen presenting cells are B-lymphocytes,

Read the following statements:

1. All the individual of the same species has the same allele of MHC genes.

2. Professional antigen presenting cells are B-lymphocytes, dendritic cells, and macrophages.

3. Class II MHC are expressed on the surface of antigen presenting cells and present the antigen to cytotoxic T-cells

Select the correct option:

Option: 1

1 & 2

 


Option: 2

Only 2


Option: 3

Only 3


Option: 4

All of these


Answers (1)

best_answer

 

 

As studied in MHC & Antigen Presenting Cells -

MHC is polymorphic in nature and shows genetic polymorphism by expressing different alleles of a gene. Different individuals have different types of MHC genes. MHC genes are expressed as codominantly. 

  • Antigen-presenting cells (APC) is of two types i.e. professional and non-professional antigen-presenting cells. Professional antigen-presenting cells are B-lymphocytes, dendritic cells, and macrophages while non-professional APCs are fibroblasts, epithelial cells, glial cells etc.
  • Class II MHC are expressed on the surface of antigen-presenting cells and present the antigen to T{_{H}} cells.

Hence, the correct answer is option (b)

Posted by

Sanket Gandhi

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