"Researchers at the Babraham Institute have investigated the early stages of the development of cells called primordial germ cells and developed strategies to generate 'lookalike' cells in the lab. The generation of human 'lookalike' primordial germ cells is of importance for future fertility studies and the analysis of potential transgenerational epigenetic inheritance in humans.
A bit like someone looking into a mirror reflected in another mirror, as one new life is developing as an embryo, the capacity to produce the next generation of life is already being established in that embryo. Research carried out between the groups of Wolf Reik and Peter Rugg-Gunn in the Epigenetics research programme at the Babraham Institute have investigated the early stages of the development of cells called primordial germ cells and developed strategies to generate these cells in the lab. Primordial germ cells give rise to sperm or egg cells and, in humans, are already present in embryos at the second week of development..."
https://www.sciencedaily.com/releases/2016/10/161010131739.htm
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