Question

Define the term dedifferentiation.

Answer 1

dedifferentiation. noun. Biology. Reversion of a specialized cell or tissue to an unspecialized form.Dedifferentiation may occur before the regeneration of appendages in plants and certain animals and in the development of some cancers

Answer 2

Dedifferentiation:

• Dedifferentiation is process by which a fully differentiated and supreme functional cell changes into a cell which is not that developed, and often behave like a stem cell.
• Examples are – The parenchyma cells that are present in plants can dedifferentiate into a less differentiated meristematic tissue when there is some injury to the plant.
• The fully developed and functional epithelial cell of an animal can change into some tumor progenitor cell or tumor stem cell when stimulated by some mutagen.