00:01
This question is asking about which phase of meiosis involves the separation of homologous chromosomes.
00:10
So, myosis can basically be divided into eight stages, prophase, metaphase, anaphaise, and telphase of meiosis 1 and of meiosis 2.
00:26
So we'll use a simple example of a simple hypothetical organism that just has one chromosome.
00:38
So i've drawn a mutturnal copy of the chromosome here in red and a paternal copy of the chromosome here in blue.
00:51
So even though i just drew four lines, this is really only one chromosome, but then the one chromosome.
00:57
The one chromosome is composed of two homologous chromosomes, and each homologous chromosome has two identical sister chromatids.
01:11
So it looks like four lines, but it's really just one chromosome.
01:16
And then during metaphase, what's called a bivalent will line up along the metaphae's plate.
01:24
So that consists of the maternal and the paternal chromosomes lining up right in the middle of the cell on the metaphase plate.
01:37
And then during anaphase, the homologous chromosomes will separate to opposite poles of the cell.
01:51
So this is called the reduction division.
01:54
So a cell goes from being diploid, having two copies of maternal and a paternal copy of each chromosome, down to being haploid...