Archive for February 22nd, 2012
I’m in the process of watching a (Great Courses) video course titled “Understanding DNA, Genes and their Real-World Applications,” taught by Professor David Sadava. In today’s lecture (#5) he asked whether one’s original cell still exists in each adult. Each of us came from one cell, a fertilized egg, which divided, then divided again, on and on. Sadava’s question was whether our original cells might still be alive somewhere in our adult human bodies, decades later. His answer was that there is no compelling reason to assume that that original cell is not still “somewhere” inside of you, one cell among the 60 trillion cells that make up your body.