text: This group is associated with Haplogroup J1, which is disproportionately found among them.
full_question: This group is associated with Haplogroup J1, which is disproportionately found among them. In one ceremony, these people receive five pieces of silver after the birth of a first son. These people wore the Avnet sash, as well as the Ketonet, a ceremonial tunic, while performing the ceremony of Korbanot. The leader of this group wore the Tzitz crown, as well as a larger Mitznefet turban, and was called the Gadol. Members of this group may not come into contact with the dead, and they make a special gesture with their fingers when performing blessings. For ten points, name this class of hereditary Jewish priests who performed sacrifices in the Temple.
first_sentence: This group is associated with Haplogroup J1, which is disproportionately found among them.