In the early stages of T cell development in the thymus, a thymocyte that has just completed its expression of a TCR will:

Question

Accepted Answer

Be expressing both CD4 and CD8 co-receptors before MHC selection occurs

Answer

Be expressing either CD4 or CD8 co-receptors to pre-determine MHC specificity

Answer

Only be expressing TCR until it leaves the thymus and then will express CD4 or CD8

Answer

Express neither CD4 or CD8 co-receptors until engagement with MHC occurs

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