00:01
So what happens to homologous chromosomes just before cell division? do they, a, get replicated? b, consist of two sister chromatids.
00:12
C, become connected to each other, or d, both a and b.
00:17
Okay, so what are homologous chromosomes? well, homologous chromosomes are a pair of chromosomes, where one is from your maternal line and one is from your paternal line.
00:30
So it's a maternal plus a paternal chromosomes.
00:35
So we come in a pair because they are going to be extremely similar.
00:40
So what happens before cell division? well, after cell division, we need to have at least one of these, exactly one of each of these, in each of the daughter cells.
00:50
So we definitely need to replicate them.
00:53
So that's definitely happening.
00:55
A is going to happen.
00:56
But that doesn't have to be all that happens, because we have an option but both a and a.
01:01
B...