Chapter Three: Handy Genes

Though chapter two was similar to chapter three in that it wasn’t Shubin’s story, it contained a number of other scientists’ stories and their discoveries. I was amazed at how these scientists could change an organism and their usual body form just by performing surgeries. And I found it unbelievable that at the same time three different scientists were creating the same hypothesis and developing an experiment. It is amazing how all of these different organisms like sharks, chickens, and humans are so alike before they are born; that we all go through a similar stage in our development and that we all have a similar gene. I’m so glad the scientists finally have come up with an easy name that I can pronounce – “Hedgehog.” I know that when discussing the concept of DNA structure and how it works is very difficult to explain and comprehend, but Shubin wrote it in a way that I fully understood all of the concepts of how rearranging the genes rearranged the bone structure of the organisms.