All other polonium isotopes are short-lived except polonium-210 (half-life about 138 days), which is the most commonly used isotope. It is prepared by bombarding bismuth with neutrons in a nuclear reactor.olonium has 34 isotopes, more than any other element. All of these isotopes are radioactive. The most stable, polonium-209, has a half-life of about 103 years. Polonium-208 (half-life about 3 years) is the only other polonium isotope with a half-life over one year.
Ashkenazi Jewish genetic diseases are a group of rare disorders that occur more often in people of Eastern European (Ashkenazi) Jewish heritage than in the general population.
Here is a list of diseases that are often screened for in Jewish couples who are planning to have children because of an elevated risk of carrying a recessive mutation. Researchers have identified many more genetic diseases affecting those of Ashkenazi heritage than those of Sephardic and Mizrahi descent.aucher disease type 1 is the most mild form of the disease and affects those of Ashkenazi Jewish descent in greater numbers. Approximately 1 in 16 is a carrier and 1 in 855 has Gaucher disease. Among the general population, approximately 1 in 100/200 is a carrier; about 1 in 60,000 has the disease.