Breeding of the human heavy chain transgenic animals with transgenic non human animals containing a human immunoglobulin light chain transgene produces transgenic non human animals containing {HEAD ~ a human heavy chain transgene} of {TAIL ~ the invention} and a human light chain transgene 
of
Breeding of the human heavy chain transgenic animals with transgenic non human animals containing a human immunoglobulin light chain transgene produces transgenic non human animals containing { HEAD ~ a human heavy chain transgene } of { TAIL ~ the invention } and a human light chain transgene
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