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What mechanism below accounts in part for the generation of 1012-13 distinct B cell receptors? The random cuts in the sequenc

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The addition of non-templated bases in the sequences found between the V, D, and J segments.

During VDJ rearrangement, diversity is further increased by adding additional nucleotides between the junctions of V, D, J gene segments. These additional bases are non-template based and so are called N nucleotides. This occurs through the formation of hairpin loop structures between the junctions and provides extra diversity and affinity to the b cell receptor.

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