Most people know that 28.35 grams is 1 Ounce, but that is the avoirdupois Ounce, the common method to weigh groceries etc. When you are weighing precious metals or stones, jewellers use another method called Troy in which 31.103 grams is 1 Troy Ounce.So remember:ost people know that 28.35 grams is 1 Ounce, but that is the avoirdupois Ounce, the common method to weigh groceries etc. When you are weighing precious metals or stones, jewellers use another method called Troy in which 31.103 grams is 1 Troy Ounce. So remember:
Used For: mtDNA tests can be used to test your direct maternal lineage - your mother, your mother's mother, your mother's mother's mother, etc. mtDNA mutates much more slowly than Y-DNA, so it is really only useful for determining distant maternal ancestry. Available To: Everyone.
Female Lineage Testing. Discover blood relations through the maternal line. Verify common female relatives and ancestors. The mtDNA comparison DNA test, also known as a maternal lineage test, can confirm your relationship to long-lost relatives and possible ancestors through the maternal/female line.