Advance In Human Embryo Research Rekindles Ethical Debate
Scientists have been able to keep human embryos alive twice as long as before. The technique is reopening a debate over a rule limiting research on human embryos to 14 days.
That limitation meant scientists were unable to conduct a range of detailed research into early human development.
It’s a step they say will yield important insights into human development and could lead to a better understanding of the factors that cause miscarriages and birth defects.