Tag Archives: mtDNA

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 […]

The illness of Tom Wedgwood: a tragic episode in a family saga

John Hayman Melbourne, Australia   Figure 1. Tom Wedgwood, from the frontispiece of Tom Wedgwood, the First Photographer, by R.B. Litchfield (1903). The inscription reads: “From a chalk drawing belonging to Miss Wedgwood, of Leith Hill Place. Artist unknown.” Print in public domain. Tom Wedgwood (1771-1805) was born into the famous pottery dynasty as the […]