CineEarly Pregnancy Factor |
| Compre ahoraDe La biología del desarrollo prenatal |
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Guión: As early as 24 to 48 hours after fertilization begins, pregnancy can be confirmed by detecting a hormone called "early pregnancy factor" in the mother's blood. |
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Todas las edades en referencia a la fecundación, no al último período menstrual.
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Fertilization 2
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Cell Division
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The Morula and Blastocyst
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3 Billion Base Pairs per Cell
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Amnion and Germ Layers
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Early Embryonic Development
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