00:01
Which of these happens in meiosis 1? a, the homologous chromosomes separate.
00:07
B, crossing over occurs between the homologous chromosomes.
00:10
C, there is independent assortment of chromosomes.
00:14
And d, the dna replicates.
00:17
Okay, so let's go through these.
00:18
First of all, a, this is true.
00:21
So during meiosis 1, we get separation of the homologous chromosomes.
00:26
Mesos 1 has separation of the homologous chromosomes, and at this point, each chromosome has two sister chromatids.
00:37
In meiosis 2, we see separation of those sister chromatids...