Final preparations are under way for the arrival of more than 1,200 biotechnology executives who will come to North Carolina in April for the seventh international meeting of the Association of Biotechnology Companies. Top brass from more than 300 biotechnology companies and organizations in the United States and 20 other countries will attend the meeting and exhibition April 12-16 at the Sheraton Imperial Hotel in Research Triangle Park. Merger to boost attendance Record attendance is expected because many members of the biotechnology industry's other trade group, the Industrial Bi