Correct the following statements where necessary. Indicating only true or false

Question

Correct the following statements where necessary. Indicating only true or false receives no credit. Make any MINOR changes on the statements do NOT rewrite. If correct as is, write "Correct" to distinguish from no attempt. Althrough the T cell is structurally very similar to the B cell receptor (membrane-bound) mIg, the T cell receptor, unlike the mIg, can net-bind free antigen in solution. Positive selection of thymocytes during maturation in thymus involves class I MHC antigen and negative selection involves class II. Congeneic strains of mice differ at only one MHC locus, and are identical at all other loci. A 25-year old woman is taking her former boyfriend to court for child support. Her evidence consists of HLA-B, HLA-C and HLA-A allotype analysis (A9 and A11 are 2 different alleles at HLA-B, etc.): The court cannot order this man to pay child support based on this evidence. Lack of agglutination is a positive result in the agglutination inhibition assay.

Explanation / Answer

1.Correct

2. positive selection of thymocytes during maturation involve binding of both MHC class I and MHC class II molecules and in negative selection, it shows affinity to self-antigens

3. Correct

4. yes the court can order the man to pay child support

5 correct. it is not positive if no agglutination is shown up

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