A team from the Chinese Academy of Sciences has achieved a remarkable breakthrough by successfully breeding mice with genetic contributions from two fathers. Utilizing a technique known as 'embryonic stem cell engineering', they transformed male sperm into female reproductive cells, enabling fertilization by another male's sperm. This method overcame previous challenges that led to developmental defects in such engineered mice. This pioneering work not only represents a milestone in regenerative medicine but could also enable gay couples to have biologically related children in the future.
This work will help to address a number of limitations in stem cell and regenerative medicine research.
This major breakthrough could pave the way for gay men to have children who are biologically related to both fathers.
Through a technique called 'embryonic stem cell engineering', scientists created eggs from the sperm of one father which could be fertilised by the other.
Mice bred using two sets of male genes either failed to grow at all or were born with severe developmental defects.
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