Stages of Embryo Development
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Zygote: Fertilized egg (about 20 hours after insemination) |
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2 cell embryo (about 20 hours after insemination) |
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4 cell embryo (about 48 hours after insemination) |
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8 cell embryo (about 72 hours after insemination) |
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Morula: 16-32 cell embryo (about 96 hours after insemination) |
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Blastocyst stage embryo (about 115 hours after insemination) |
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