00:01
We're looking at independent assortment and the chromosomal theory of inheritance.
00:06
Which of these describes the behaviour of chromosomes to account for independent assortment? a, in meiosis, homologous pairs are separated and put into different gametes.
00:17
B, in mitosis, sister chromatids are pulled to opposite ends of the cell.
00:23
C, during meiosis, the arrangement of one member of a homologous pair does not impact other chromosomal pairs.
00:30
Or d, recombination rearranges the chromosomes for a new arrangement of genetic information.
00:37
So all of these are true statements, but only one of them accounts for independent assortment.
00:42
Independent assortment is the idea that different genes are inherited independently.
00:48
So if you have an organism that has, so it's say an organism inherits a .b from one parent and a .b.
00:58
From the other, they have this genotype.
01:01
Without independent assortment, they would only produce two types of gametes.
01:08
But because of independent assortment, they produce four types of gametes.
01:15
So you don't just get an immediate cross from the parents...