Lab-Grown Embryos

Scientists Create Embryos Without Sperm Or Eggs 1

Scientists Create Embryos Without Sperm Or Eggs

Imagine a tiny clump of cells that looks just like a human embryo. Scientists have created this amazing model using stem cells—no eggs, sperm, or womb involved. This lab-made embryo has a yolk sac and a proto-placenta, which are features seen in real human embryos about 14 days after fertilization.

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