21.   Though most living things cannot digest cellulose, termites have microorganisms in their gut that produce enzymes that allow them to do so.

22.   Under normal circumstances the iaglu gene, a segment of DNA, produces a segment of RNA which serves as a template off which the iaglu enzyme is produced.

23.   Worms also produce enzymes that enable bacteria to work more efficiently.

24.   An abnormal enzyme is produced by the defect, which makes for the abundance of white blood cells.

25.   High calcium levels produce enzymes that break up proteins -- in this case, nipping the ends off the TnI proteins that help a heart beat, Murphy explained.

26.   Once in place, the attacking cells produce an enzyme that turns toxic to themselves and their neighbors when treated with an antiviral drug called ganciclovir.

27.   That produces an enzyme that eats through the coating, allowing the sperm to enter and fertilize the egg.

28.   The cells of animals and people produce an enzyme called superoxide dismutase, or SOD, that can mop up the damaging molecules.

29.   The gene produces enzymes called alcohol dehydrogenase that break down alcohol.

30.   The spores germinate, grow threadlike into the plant, and produce enzymes that digest tissue.