Scientists Create Immature Human Eggs From Stem Cells

Scientists say they have taken a potentially important — and possibly controversial — step toward creating human eggs in a lab dish. A team of Japanese scientists turned human blood cells into stem cells, which they then transformed into very immature human eggs. The eggs are far too immature to be fertilized or make a baby. And much more research would be needed to create eggs that could be useful — and safe — for human reproduction.

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