Dr. Dre Biography. Music producer and hip hop performer Andre Young, a.k.a. Dr. Dre, co-founded the notorious rap group N.W.A. (with Ice Cube and Eazy-E). The group was one of the most successful hip-hop groups of the late 1980s and helped lay the foundations of whatâs known as West Coast âgangstaâ rap.
124 Part II Biology of the Cell Receptor Proteins and Signaling between Cells Communication between cells is com-mon in nature. Cell signaling occursin all multicellular organisms, provid-ing an indispensable mechanism forcells to influence one another.
Cell signaling has been most extensively studied in the context of human diseases and signaling between cells of a single organism. However, cell signaling may also occur between the cells of two different organisms.In many mammals, early embryo cells exchange signals with cells of the uterus. In the human gastrointestinal tract, bacteria exchange signals with each other and with human epithelial and immune system cells.ignaling within, between, and among cells is subdivided into the following classifications: 1  Intracrine signals are produced by the target cell that stay within the target cell. 2  Autocrine signals are produced by the target cell, are secreted, and affect the target cell itself via receptors.