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Sperm

Source: Centro Riproduzione Assistita, Catania, Italy.

Label Key:

  • 1. spermatozoa

All ages referenced to fertilization, not last menstrual period.
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Sperm
Sperm
Secondary Oocyte
Secondary Oocyte
Single-Cell Embryo
Single-Cell Embryo
Zygote
Zygote
Human Zygote
Human Zygote
The Zygote
The Zygote
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