Breakthrough: Precursors to Human Sperm, Ova Created From Adult Cells

Primordial germ cells are the precursor of sperm and ova; British-Israeli team postulates discoveries could help infertile couples one day.

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A joint Israeli-British group today announced a breakthrough in reverting adult cells into primordial human germ cells in the lab – in other words, into the embryonic cells that give rise to sperm and ova.