Totipotent Cells
From the zygote which divides to form an embryo springs forth every type of cell in the body, of which there are over 200, and all the tissues required for the placenta. Because of this, these very early cells which, in humans, occur just in the first four days following fertilisation, are termed totipotent. Toti- is from the latin totus, meaning whole (the same root of the word total), and potent being from the latin potens meaning to be able; thus the cell is able to produce any other cell.
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