Transaction in Own Shares

Genus PLC
15 December 2004


Genus plc ('the Company')

Treasury Shares

The Company announces that today it has purchased a further 98,389 ordinary
shares of 10p each at 250.5p per share for holding as Treasury.

Today's purchase arises from 197 smaller shareholders who have tendered their
shares for sale in to the voluntary buy-back scheme.

The issued share capital of the Company is 36,561,542 shares including 1,589,974
(4.34%) Treasury shares.

For reporting purposes under section 198 of the Companies Act 1985 the market
should exclude any shares held in treasury and should use a figure of 34,971,568
shares.

15 December 2004

Enquiries:

Genus plc                                                  Tel: [phone]
                                                                        
Richard Wood, Chief Executive, Genus plc
David Timmins, Group Finance Director, Genus plc




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