Tag: mtDNA
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Mitochondrial DNA: a maternal gift
Marshall LichtmanRochester, New York, United States 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 thousand genes and the smallest several hundred. DNA is so tightly wound that uncoiled from a single…
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The illness of Tom Wedgwood: A tragic episode in a family saga
John Hayman Melbourne, Australia Tom Wedgwood (1771-1805) was born into the famous pottery dynasty as the third surviving son of Josiah Wedgwood (1730-1795) and his wife Sarah (1734-1815). Sarah was also a Wedgwood, a distant cousin of her husband.1 Tom was ill for all of his short life, a life recorded by his biographer, Richard…