EditorialA poster of the geneticist Dr. Terry Jackson as a child with sickle cell anemia, in his office in Petersburg, Va., Dec. 19, 2022. (Carlos Bernate/The New York Times)
EditorialCanadian geneticist Cassandra Extavour in her office at Harvard University, in Cambridge, Mass., on July 25, 2022. (Tony Luong/The New York Times)
EditorialCanadian geneticist Cassandra Extavour in her office at Harvard University, in Cambridge, Mass., on July 25, 2022. (Tony Luong/The New York Times)