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.
- thoughtco., Is the date of easter related to passover? when is easter 2017? here is the date on which we will celebrate easter this year: easter 2017: sunday, april 16, 2017. When mother' day 2017 & 2018? dates mother' day, Dates of mother's day in 2017, 2018 and beyond, plus further information about mother's day.