The result of this union will be a cell with three copies of chromosome 21. Recall again that we've only been considering chromosome 21 so far. Chromosome nondisjunction is generally rare, so the new cell probably has two copies of all of the other 22 chromosomes, just as it should.
When is Mother's Day 2017? Mother's Day 2017 is on Sunday, May 14, 2017 (in 270 days). Mother's Day 2016 has already passed - it was on Sunday, May 8, 2016, 101 days ago.
Five years later, the House of Representatives adopted a resolution calling for officials of the federal government to wear white carnations on Mother's Day. In 1914 Anna's hard work paid off when Woodrow Wilson signed a bill recognizing Mother's Day as a national holiday. At first, people observed Mother's Day by attending church, writing letters to their mothers, and eventually, by sending cards, presents, and flowers. With the increasing gift-giving activity associated with Mother's Day, Anna Jarvis became enraged.