Until Now
BiologyScienceMedicine

Genetic engineering

DNA from one organism is spliced into another, and biologists pause to write rules.

When
Duration
2 years
Known to
± 1 year
Era
Contemporary, Holocene

Boyer and Cohen produce functioning recombinant DNA in 1973. Recognising the risks, the researchers themselves call a moratorium and convene the Asilomar conference in 1975 to agree containment guidelines before proceeding — a rare instance of a field regulating itself in advance. Human insulin produced in bacteria reaches patients by 1982, replacing extraction from animal pancreases.

Just before

Just after