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Amniocentesis Prior to 1980
By: Kristin Kelley
| Published: Sep 02, 2010
The extraembryonic membranes that surround and originate from the embryos of vertebrates such as birds, reptiles, and mammals are crucial to their…
AmniocentesisReproductionFetus
Tay-Sachs Disease
By: Kristin Kelley
| Published: Oct 29, 2010
In 1881 British opthalmologist Warren Tay made an unusual observation. He reported a cherry-red spot on the retina of a one-year-old patient, a…
Tay-Sachs DiseaseCongenital DisordersHeredity