Scientists have created eggs using the cells of male mice for the first time, leading to the birth of seven mice with two fathers, according to research Wednesday hailed as “revolutionary”.
The technique pioneered in the proof-of-concept experiment is a long way from potentially being used in humans, with obstacles including a low success rate, adaptation concerns and wide-ranging ethical considerations.
But the breakthrough raises the prospect of a raft of new reproductive possibilities, including that gay male couples —or even a single man—could have a biological child without needing a female egg.
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