Advanced Fertility Center of Chicago http://www.advancedfertility.com/
The surfaces of unfertilized eggs are usually smooth in appearance. The mottled look of this egg is not normally seen, but apparently all the ova from this woman had this appearance.
From this photograph, it should be clear that the heads of human sperm are less than 1/20 the diameter of human eggs.
_ Arrows point to sperm heads
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