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  1. Return to Immunology Student Resources

Section 6.3 Quiz

* not completed
. Exonucleases can trim the P nucleotides left in the overhang region of the opened end of the gene segment, whereas _____ can add N nucleotides to the ends of each gene segment without the requirement of a template strand.

* not completed
. In the recombination events that enhance the diversity of T-cell receptors, the removal of P nucleotides and addition of N nucleotides is random.

* not completed
. Productive rearrangements result in the production of a functional receptor subunit, whereas unproductive rearrangements alter the production of the subunit and result in a nonfunctional T-cell receptor.

* not completed
. Why does a T cell activate apoptosis when unproductive rearrangements are made at all the α andβ loci?

* not completed
. Which of the following can alter the reading frame of the recombined locus that is used to produce a protein product to function as a T-cell receptor subunit?

* not completed
. Which of the following is likely to happen if T cells with a self-recognizing receptor escape the thymus?

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