It refers to the grid of nucleic acid molecules of known sequence linked to a solid substrate, which can be probed with a sample containing either messenger RNA or complementary DNA from a cell or tissue to reveal changes in gene expression relative to a control sample.

It is the abnormal transformation of an adult, fully differentiated tissue of one kind into a differentiated tissue of another kind.

It is generation and manipulation of stem cells with the objective of deriving cells of a particular organ or tissue to treat a disease.

These are small groups of cells distinguishable, in appearance or histochemically, from the surrounding tissue: indicative of an early stage of a lesion that may lead to the formation of a neoplastic nodule.

I contributed to many successful projects..
of course i used my brain power :-)

Totipotency is the ability of a single cell to divide and produce all the differentiated cells in an organism,
including extraembryonic tissues. Totipotent cells formed during sexual and asexual reproduction include spores and zygotes.the definition of pluripotency has come to refer to a stem cell that has the potential to differentiate into any of the three germ layers: endoderm (interior stomach lining, gastrointestinal tract, the lungs), mesoderm (muscle, bone, blood, urogenital), or ectoderm (epidermal tissues and nervous system). Pluripotent stem cells can give rise to any fetal or adult cell type. However, alone they cannot develop into a fetal or adult animal because they lack the potential to contribute to extraembryonic tissue, such as the placenta.