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DNA testing
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- 1New book says DNA hair analysis sheds light on Thomas Jefferson question▼NOW PLAYING == NPR Book of the Day: In 'History by a Hair,' DNA offers answers to an old question about Thomas Jefferson
NPR's Book of the Day is highlighting 'History by a Hair,' a book in which DNA analysis is used to address a long-standing question about Thomas Jefferson. The most famous such question is whether Jefferson fathered children with Sally Hemings, an enslaved woman at Monticello, a debate genetic evidence has fed for years. Listeners and readers are sharing the segment across public radio and book communities, with discussion of how DNA testing can settle or complicate historical controversies.
- 23billion says it cracked FSHD diagnosis with long-read sequencing●Unlocking the “Unmappable” D4Z4 Repeat: How 3billion Mastered FSHD Diagnosis with Long-Read Sequencing
Genetic testing company 3billion announced it has mastered diagnosis of facioscapulohumeral muscular dystrophy (FSHD) by sequencing the D4Z4 repeat, a region long considered unmappable with standard short-read methods. The company says long-read sequencing now allows reliable analysis of this repetitive DNA segment, potentially improving diagnosis for patients who previously went undetected. Details on clinical validation remain limited.