Tag Archives: mitochondria

When Darwin was wrong

John Hayman Victoria, Australia   Fig. 1. The Parallel Roads of Glen Roy, as would have been seen by Darwin. (Photo by Bev Biggs.) Charles Darwin (1809-1802) is rightly famous, not for the discovery of evolution but for revealing the mechanism by which it may occur, natural selection. He not only formulated this idea, but […]

Mitochondrial DNA: a maternal gift

Marshall Lichtman Rochester, New York, United States   Human haplogroup tree rooted at Mitochondrial Eve. By Wapondaponda. 2009. Via Wikimedia. CC BY-SA 3.0 DNA is arrayed on twenty-three pairs of chromosomes in human cell nuclei. It is coiled tightly around proteins called histones that together with DNA form a chromosome. The largest chromosome carries several […]

What can physicians learn from Benjamin Rush, blood, and the Red Cross?

Ryan Hill Jamestown, Rhode Island, United States   Portrait by Charles Willson Peale,¬†Benjamin Rush, circa 1818. Independence National Historical Park. Accessed via Wikimedia Commons. Despite the adamant opposition he encountered from many of his contemporaries, Dr. Benjamin Rush was undeterred; he was certain that bloodletting was the most prudent of all medical procedures and remained […]