00:01
So the question is, what happens in meiosis 1 when homologous chromosomes fail to disjunction? this is essentially what happens when non -disjunction occurs at meiosis 1.
00:11
So this type of error is called non -distunction.
00:14
So let's say we have a cell.
00:16
The chromosomes have been duplicated, right? we have our chromatids.
00:21
And at meiosis 1, at this step, this step right here, this is where both chromosomes, or rather, in this case, i have two, where they should have been separated appropriately, except in this case, we have a non -destruction issue, meaning they did not separate appropriately.
00:57
Because it did not separate appropriately, we now have one daughter cell with three chromosomes and one daughter cell with one chromosome.
01:05
And so when those daughter cells undergo myosis two, i'm sorry, not myiosis 2...