The investigators were trying to produce cells with the potential to differentiate into any type of cell needed (i.e. pluripotent stem cells).

Scientists hope to be able to coax stem cells to evolve into replicas of cells needed to repair diseased or damaged tissue.

Free radical oxidation in the body can disrupt or destroy cells needed for immunological defenses.

Using a concentrator also has the added benefit that the number of cells needed to cover a given amount of ground area is greatly reduced.

The root is composed of several regions that give rise to the specialized cells needed in the formation of plant tissues.

The picture elements - Trinilites, which contain the red, green and blue cells needed to make a color image - cost $125 apiece.

Specification of level shifter logic - special cells needed when signals traverse between blocks of different supply voltage.

Thus, both the meiome and translational controls determine the broad restructuring of meiotic cells needed to carry out meiosis.

One, reproductive cloning, is used to duplicate a person; the other, therapeutic cloning, is used only to create cells needed for research.

In the Federal system, that alone will cost $3.8 billion to $5.5 billion for the estimated 57,000 to 83,000 new cells needed by 1997.