31.   What Hammond and Goodwin hope to validate is that cells grow remarkably well in microgravity.

32.   When they were present, the cells grew and looked like cancer cells.

33.   With their molecular brakes released, it seemed, the smooth muscle cells could grow, forming plaque and clogging the artery.

34.   A single plant cell can grow into a complete plant, unlike animal cells.

35.   An experimental attempt to give baboon marrow to an AIDS patient at the University of Pittsburgh two years ago failed, because the cells would not grow.

36.   Cancer cells grow faster than normal tissue.

37.   In the meantime, he said, researchers can apply for federal money to learn more about how the cells grow.

38.   Mussa-Ivaldi said the glass cone implant is bulkier, but its advantage is that brain cells grow around the glass, holding it in place.

39.   Risks include the possibility that genetically engineered cells could grow out of control, leading to cancer.

40.   Standard cornea transplants had not worked because the people did not have cells needed to grow a new protective covering over the cornea.