The AMEX Biotechnology Index was up 1.04 to 159.76 onTuesday. Among individual biotechnology issues, Neozyme IIgained $2.50 per share to $49, and Chiron Corp. was up $1.75 to$60.50. Stocks that fell for the day included Biochem PharmaInc., down $2.38 per share to $13, and Immune Response Corp.,off $2.25 to $25.75.
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