Re-assortment (contd)

The number of possible different gametes via re-assortment depends on the number of different pairs of chromosomes present (usually called x):

For x=n: 2 ⁿ possible gametes, of which 2 are parental, and 2 ⁿ -2 are “"re-assorted". This number can get very large!

For example, in bread wheat, x=21, so the number of possible re-assortments is 2²¹-2 > 2,000,000