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.
Jewish Genetic Diseases. There are a number of genetic disease for which persons of Jewish heritage (at least one grandparent) are more likely to be carriers of than the general population. Carriers are healthy individuals, unaffected by the disease for which they carry.t is estimated that nearly 1 in 2 Ashkenazi Jews in the United States is a carrier of at least one of 38 Jewish genetic diseases.