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Ethicists Sound Alarm After Creation of Monkey Embryos Containing Human Cells

A human-monkey chimeric blastocyst. Credit: Weizhi Ji/Kunming University of Science and Technology.

A human-monkey chimeric blastocyst. Credit: Weizhi Ji/Kunming University of Science and Technology.

An article published April 15 in the journal Cell described how scientists took a blastocyst from a macaque and added human cells.