Ashkenazi Jews Jews as an ethnic group. Moreover, though intermarriage among Jews of Ashkenazi descent has become increasingly common, many Haredi Jews, particularly members of Hasidic or Hareidi sects, continue to marry exclusively fellow Ashkenazi Jews. This trend keeps Ashkenazi genes prevalent and also helps researchers further study the genes of Ashkenazi Jews with relative ease. It is noteworthy that these Haredi Jews often have extremely large families. The "Halakhic" practices of (Orthodox) Ashkenazi Jews may differ from those of Sephardi Jews, particularly in matters of custom. Differences are noted in the "Shulkhan Arukh" itself, in the gloss of Moses Isserles. Well
Ethnoreligious group Ethnoreligious group An ethnoreligious group (or ethno-religious group) is an ethnic group whose members are also unified by a common religious background. In general ethnoreligious communities define their ethnic identity not only by ancestral heritage nor simply by religious affiliation but normally through a combination of both. An ethnoreligious group has a shared history and a cultural tradition - which can be defined as religious - of its own. In many cases ethnoreligious groups are ethno-cultural groups with a traditional ethnic religion; in other cases ethnoreligious groups begin as communities united by a common faith which through endogamy developed cultural