The concept called 'designer babies' is now the talking point in countries like the UK and US. Mothers will be hopefully able to choose embryos based the preferences like sex, intelligence, disease risk and other key traits. 'Designer baby' is an embryo that is genetically engineered for specific traits and implanted in the mother's womb via In-vitro Fertilization (IVF). This can seem like a science-fiction concept, but this could become a reality after 20 to 40 years, said Professor Henry Greely from Standard University, who works in Bioethics.