An image of a sperm cell, coloured in yellow and red, swimming towards an egg cell, coloured in red, orange and blue, on a green background

Lab-grown sperm and eggs: ‘epigenetic’ reset in human cells paves the way

Technique wipes away tags on DNA that must be reprogrammed during development of reproductive cells


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Sex and gender in science

Fraught societal debates, particularly surrounding gender identity, are raising new questions about how to best take account of sex and gender in research, both in human health and elsewhere – even as scientists are increasingly recognizing that they must move beyond paradigms based on extrapolating findings from men or male animals.


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