One of the dominant features of the immune system is the capacity to generate new cells that contain different combinations of antibodies. Because there are billions of such combinations it is impossible that each combination is coded by a separate gene. Explain in as much detail as you can how such diversity is accomplished in the case of the light chain of a typical antibody.
-Ab genes composed of segments (many copies of each segment, each slightly diff)
-segments joined to make immunoglobulin gene
-many possible combinations b/c joining of segments is random
-diversity is result of somatic recombination, which moves V segment next to J segment
-B cell transcribed into pre-mRNA w/ 1 V gene, several J genes, 1 C gene
-pre-mRNA processed into mRNA, which is translated to functional light chain
-break and nibble mechanism also helps increase diversity