May 2 (Reuters) - Horizon Discovery Group Plc:
* CONFIRMS IT RECEIVED UNSOLICITED AND HIGHLY CONDITIONAL PROPOSAL FROM ABCAM REGARDING A POSSIBLE OFFER FOR HORIZON DISCOVERY GROUP
* BOARD CONSIDERS UNSOLICITED PROPOSAL TO BE HIGHLY OPPORTUNISTIC BELIEVES IT FUNDAMENTALLY UNDERVALUES CO AND ITS FUTURE PROSPECTS Source text for Eikon: Further company coverage: (Reuters.Briefs@thomsonreuters.com)