Ep 15. Cracking Your Genetic Code

In the 15th episode of season 39 of NOVA, titled "Cracking Your Genetic Code," viewers are taken on a journey into the world of genetics and genomics. The episode explores the incredible advances that have been made in the field of genetics over the past few decades, including the discovery of the structure of DNA and the development of gene editing technologies like CRISPR.

Throughout the episode, viewers learn about the many ways in which genetics can influence our health and wellbeing, from our risk of developing certain diseases to our response to various medications. Viewers are introduced to a number of people whose lives have been affected by genetic factors, including a couple who discover that they are both carriers for a rare genetic disorder and a woman who undergoes genetic testing to learn more about her family history and risk of breast cancer.

One of the main themes of the episode is the importance of privacy and informed consent in the realm of genetic testing. Viewers learn about the ways in which companies like 23andMe and Ancestry DNA are using genetic data to provide insights into people's ancestry, health risks, and more. However, the episode also highlights the potential dangers of this kind of genetic testing, including the risk of data breaches and the possibility of discrimination by employers, insurers, or others on the basis of one's genetic profile.

The episode also delves into some of the ethical concerns surrounding advances in gene editing technology. Viewers are introduced to scientists who are using CRISPR to edit the genes of animals and plants, and the potential implications of these techniques for human health and disease are discussed. The episode explores some of the concerns surrounding gene editing, such as the possibility of creating "designer babies" with desirable traits and the potential for unintended consequences.

Throughout the episode, viewers are presented with a wealth of information about the history and science of genetics, as well as a glimpse at some of the exciting developments that are yet to come in this rapidly-evolving field. The episode's balanced and comprehensive approach makes it a must-watch for anyone interested in the science of genetics and its implications for our lives and society.