3) At the completion of meiosis, how many sets of chromosomes does each daughter cell contain?     1     2     3     4   4) Imagine that a cell within a tissue is expressing a protein that leaves the cell and can “signal” to other cells. Which cells will respond?   A) Cells that are within range of the signaling molecule and have protein receptor that binds the signaling molecule   B) Cells that are within range of the signaling molecule   C) Cells that are within range of the signaling molecule and are expressing their own signaling molecules   D) Cells that are within range of the signaling molecule and are the same type of cell

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Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.