What are asymmetric cell divisions?

Some articles on cell:

Cellular Differentiation - Mechanisms
... Each specialized cell type in an organism expresses a subset of all the genes that constitute the genome of that species ... Each cell type is defined by its particular pattern of regulated gene expression ... Cell differentiation is thus a transition of a cell from one cell type to another and it involves a switch from one pattern of gene expression to another ...

Famous quotes containing the words divisions and/or cell:

    Nothing does more to activate Christian divisions than talk about Christian unity.
    Conor Cruise O’Brien (b. 1917)

    Let man consider what he is in comparison with all existence; let him regard himself as lost in this remote corner of nature; and from the little cell in which he finds himself lodged, I mean the universe, let him estimate at their true value the earth, kingdoms, cities, and himself. What is a man in the infinite?
    Blaise Pascal (1623–1662)