For the first time, it is possible to actually watch the initial 24-hours of the life of an embryo at the cellular level. With a newly developed microscope that uses a sheet of light to scan a living organism from many different dimensions, scientists were able to track the complex cellular organization of a zebrafish embryo as it grows from a single cell to 20,000 cells. Imagine what occurs in a human mother's womb:
Sunday, October 12, 2008
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