Genetics special.

A Tomorrow's World Special hosted by Howard Stableford and Shahnaz Pakravan. We hear, here, about all the latest techniques in genetic profiling from the latest in forensic science (the DNA photofit), genetically inherited diseases such as hypertrophic cardiomyopathy, physical attraction according to smell, gene therapy for cancer with Karol Sikora at Hammersmith Hospital, genetically modified beer and other foods and finally how genetic modification can help design organs for organ transplantation.