This fact sheet is for the video An introduction to Cell Differentiation and Embryonic Development.
The human body contains over 200 distinct cell types and around three times 10 to the power of 13 (that is a 3 with 13 zeros after it). These all come from just two cells—the sperm cell and the oocyte, which fuse to make one cell—the zygote.
The above video looks at how we go from one cell, the zygote, to all the cells in the human body.
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