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Genetics after DNA Genetic engineering: 1973, Herbert Boyer and Stan Cohen first transferred genes from one species to another Opening the door for genetically engineered drugs and genetically modified organisms, including food. 1970s: Golden age of genetically engineering, producing a revolution in pharmaceutical industry and agriculture. Ethical Issues Are we playing God? 1970s: Scientists’ self-imposed moratorium on genetic engineering Biological warfare: Genetically engineered biological agents 1980: Supreme Court allowed genetically modified plant to be patented 1990s: The Human Genome Project 2000s: Debate over human cloning and therapeutic human embryonic stem cell research 2005: Korean scientists simplified human stem cell research