Episodes
This panel discussion will bring together this series' five esteemed presenters to address the complex and varied issues associated with genomics research and its potential impact on individuals and society. At the discussion's core will be the questions of mankind's role and responsibilities in choosing to "modify" nature. Topics will include: the risks and rewards associated the new norms of pre-natal genetic screening; the impact of readily available low-cost genetic profiling; global...
Published 03/06/13
Two twin sisters, one with and one without asthma. Two genetically identical mice, one black and lean, the other yellow and obese. Two human cells, one from the brain and the other from the skin: they look and act different, but they have the same DNA sequence. All of this is the work of epigenetics. Much emphasis has been placed on DNA and genes as repositories of the code designed to transmit information and dictate biological programs. However, developmental trajectories and responses to...
Published 02/27/13
The world’s population will grow to more than 9 billion in less than 40 years. How can farmers grow enough food to feed this population in a more sustainable and environmentally friendly way? Research is now underway to create the next generation of green revolution crops - the so called “green super crops” where “super” means a doubling or tripling of yields, and “green” means a reduction in the use of water, fertilizer, and pesticides etc. The 9 billion-people question (9BPQ) is one of the...
Published 02/20/13
What determines the complexity of life? Darwin described how evolution produced “endless forms most beautiful”, yet he was unaware of genetics and the laws of inheritance. Our genomes provide the ultimate record of evolution, and evolution explains many fascinating aspects of our genomes. How do changes in the genome allow organisms to adapt to their environment? How do changes in the genome produce new species? Why do worms and humans have about the same number of genes? This lecture will...
Published 02/13/13
The Spanish influenza pandemic of 1918 was the most intense outbreak of disease in human history. It killed upwards of 50 million people (most in a six-week period) casting a long shadow of fear and mystery: nearly a century later, scientists have been unable to explain why, unlike all other influenza outbreaks, it killed young adults in huge numbers. I will describe how analyses of large numbers of influenza virus genomes are revealing the pathway traveled by the genes of this virus before...
Published 02/06/13
Fernando D. Martinez, MD, Director, BIO5 Institute; Director, Arizona Respiratory Center; Swift-McNear Professor of Pediatrics and Regents' Professor, The University of Arizona
The last 20 years have been marked by an astonishing growth in our knowledge about the molecules that make up living things. And among those molecules, none has attracted more attention than DNA. The DNA code of hundreds of life forms has been sequenced, and this code contains not only information needed to assemble...
Published 02/05/13