Molecular & Cellular
First thing you need to know: Before doing anything else, you should simply click “play” and start watching the video above. It doesn’t take long for Robert Sapolsky , one of Stanford’s finest teachers, to pull you right into his course. Better to watch him than listen to me. Second thing to know: Sapolsky is a MacArthur Fellow, a world renowned neurobiologist, and an adept science writer best known for his book, Why Zebras Don’t Get Ulcers . Much of his research focuses on the interplay between the mind and body (how biology affects the mind, and the mind, the body), and that relationship lies at the heart of this course called “Human Behavioral Biology.” Now the third: Human Behavioral Biology is available on YouTube and iTunes for free.
We traditionally think about the tree of life in terms of Kingdoms: plants, animals, fungi, bacteria, etc. Genetics has really revolutionized the way we think about the tree of life and, because our classifications should reflect ancestry (that is, who is more closely related to whom), it has actually called into question a lot of our traditional classifications. Most biologists split up life into three domains: Archaea, Bacteria, and Eucarya (the last of which includes animals, plants, fungi, etc.). The three domains of life. From Carl Zimmer's blog The Loom.
Barcelona, Spain. Scientists have discovered that each gene identifies which proteins encoded by the gene are expressed in a particular tissue at a given moment. This is a new understanding of the way a body develops more specialized or elaborate body plans. The NOVA1 gene encodes a