21.   So the secret is to make extra copies instead of waiting and recopying the information after some set amount of time.

22.   That way, the person can forward the extra copy to his family.

23.   The extra copies are free to develop other functions and also to be put under different control mechanisms, Rubin said.

24.   The next day, one London tabloid sold a million extra copies.

25.   Then the team manipulated the cancer cells by adding extra copies of the CHK gene.

26.   A front company was set up to handle the extra copies, prosecutors said.

27.   Because of a genetic mutation, many cancer cells have extra copies of these receptors, which help fuel their out-of-control growth.

28.   In some cancers, cells have many extra copies of the EGF receptor, so the growth message gets vastly amplified.

29.   Several universities which ran out of forms by noon had to collect extra copies from the corporation.

30.   Delegates would also have to bring along the working papers that were supplied to the diplomatic missions, as extra copies would not be available at the conference hall.