Gravar-mail: SPECIFIC IMMUNE RESPONSE GENES OF THE GUINEA PIG : II. RELATIONSHIP BETWEEN THE POLY-L-LYSINE GENE AND THE GENES CONTROLLING IMMUNE RESPONSIVENESS TO COPOLYMERS OF L-GLUTAMIC ACID AND L-ALANINE AND L-GLUTAMIC ACID AND L-TYROSINE IN RANDOM-BRED HARTLEY GUINEA PIGS