Son preference, sex selection, and the "new" new reproductive technologies.

Throughout recorded history, humans have tried to influence the sex of their offspring, through pregnancy injunctions, infanticide, and infant/child neglect. Reproductive technologies developed in the late 20th century allow determination of the sex of the offspring during pregnancy, making "sex selection" through abortion possible. Especially in parts of East and South Asia, sex selection against female fetuses has had dramatic consequences for male/female sex ratios. However, "newer" new reproductive technologies, such as prenatal genetic diagnosis and DNA-weighted semen selection, can now be applied for sex selection; eventually, the latter technology may become easily accessible as a noninvasive method. The prospects of these new technologies for sex selection must be considered in the light of cultural values surrounding son preference / daughter discrimination in many parts of the world, most notably Asia, as well as preferences for a "gender-balanced" family in much of the West. The ethical issues surrounding these technologies, such as the right to life and the equal treatment of female children, are potentially profound, but legislating the appropriate use of these "newest" new reproductive technologies will be difficult.