61.   The cartilage experiment was the longest successful cultivation of living cells in weightlessness.

62.   The drugs are made from living cells, mainly proteins cultured in bacteria or hamster cells.

63.   The exhibit now gently offers the chance to learn more about how DNA programs the operation of a living cell.

64.   The human body is composed not of perishable materials like wood or metal, but of living cells that can grow and replenish themselves.

65.   The key issue tackled by the ACT research has to do with the way living cells age.

66.   The messenger-RNAs can be extracted from living cells and copied back into DNA by the researcher.

67.   The more biologists understand of living cells, the more daunting seems the task of figuring out everything they do.

68.   The organisms are among the smallest bacteria to cause human disease and are difficult to cultivate in a laboratory because they grow only within other living cells.

69.   The privately owned company is a leader in harnessing the glow-in-the-dark radiant reactions produced by living cells.

70.   The problem is, recombinant proteins produced in living cells often misfold and can wind up in a useless clump, like wrinkled shirts balled up in the dryer.