Allelic exclusion prevents the expression of B cell receptors that recognize self-antigens.

Not all T cell complete development and maturation. A number of T cells end up dying through a mechanism described as death by neglect and governed by the nature of interaction with MHC molecules. Which one of the following levels of T cells-MHC interactions leads to death by neglect?

Which of the following cell(s) recognizes glycolipid antigens conjugated to CD1d molecule expressed on antigen presenting cells.

Notch are IL-7 are respectively the key transcription factor and cytokine for commitment of T cell lineage.

The genes of major histocompatibility complex (MHC) encode polymorphic and nonpolymorphic genes. Which one of the following are encoded by nonpolymorphic genes?

Positive selection is the mechanism that allows the host to retain T cells that recognize self MHC class I or MHC class II.

What is this tissue? 

Bonus Question: What does the the ABCDE acronym used to distinguish melanomas from other skin cancers and from normal moles stand for?

MHC class I genes encode proteins expressed on the surface of all nucleated cells

In general, the VDJ recombination of immunoglobulin heavy chains is similar to the mechanism of generation of diversity of the T cell receptors.