Australians Select Embryos for Enhanced IQ, Height, and Hair Color
Australians are increasingly exploring the controversial practice of embryo screening through genetic testing during IVF. This method allows prospective parents to select embryos based on predicted traits like intelligence, height, and even hair color, raising significant ethical concerns among experts.
Understanding Polygenic Testing
The screening technique, known as polygenic risk scores, assesses embryos by evaluating thousands of genes to predict various traits. This analysis provides potential parents with a score that indicates an embryo’s likelihood of developing certain characteristics or health issues, such as IQ levels or risks of diseases like Alzheimer’s.
Commercialization and Legal Status
Despite conflicts with national guidelines, companies like Nucleus Genomics are actively seeking partnerships with Australian fertility clinics. IVF patients can potentially access this testing overseas, legally bypassing local restrictions. Nucleus Genomics offers a program costing approximately US$30,000, which can evaluate 20 embryos for over 2000 traits including eye color, health risks, and cognitive potential.
- Nucleus Genomics promotes the ability to potentially have “smarter” children through their services.
- A couple in Australia is testing embryos for cognitive abilities and health traits, with plans for multiple children.
Ethical Concerns and Expert Opinions
Experts argue that polygenic tests are not reliable for clinical use. Concerns have been raised regarding the accuracy of the tests and the ethical implications of selecting embryos based on desirable traits. Critics fear this could lead to a society that discriminates against individuals with “non-optimal” traits, echoing harmful ideologies from the past.
Key organizations, including the American Society for Reproductive Medicine and the Human Genetics Society of Australasia, advise against the application of polygenic testing in IVF due to its nascent and unproven nature.
Scientific Limitations
Experts like Associate Professor Alex Polyakov emphasize that choices made based on these tests could mislead parents, as the genetic makeup alone does not determine a child’s development. Environmental factors play a significant role in shaping characteristics genetically influenced.
Peter Visscher, a quantitative genetics professor, reinforces that while polygenic testing may yield average improvements in traits like height or intelligence, individual results can vary significantly and cannot be guaranteed.
The Future of Embryo Screening in Australia
While some argue for the freedom to choose based on available science, the majority of experts advocate for caution. They urge that decisions to select embryos should not be solely based on potential traits projected by incomplete and unverified testing methods.
A growing number of Australians express frustration with existing regulations. They perceive a double standard in allowing tests for severe genetic conditions while restricting polygenic screening for traits like intelligence.
Conclusion
The growing interest in embryo screening for enhanced IQ, height, and hair color reflects broader societal trends toward genetic selection. This development necessitates ongoing discussions about ethical considerations, the implications of “designer babies,” and the responsibilities of medical practitioners and fertility clinics.
