Recent content by davidg1904

Consider, for example, preimplantation genetic diagnosis (PGD). This technique involves submitting embryos to genetic screening and then selecting the one—perhaps of the desired gender or free of a certain disease-causing gene—that is to be implanted into the uterus. Critics warn that PGD could...

Consider, for example, preimplantation genetic diagnosis (PGD). This technique involves submitting embryos to genetic screening and then selecting the one—perhaps of the desired gender or free of a certain disease-causing gene—that is to be implanted into the uterus. Critics warn that PGD could...

Harvey's work had little effect on general medical practice at the time — blood letting, based on the prevailing Galenic tradition, was a popular practice, and continued to be so even after Harvey's ideas were accepted. Harvey's work did much to encourage others to investigate the questions...