Independent assortment of chromosomes at meiosis explains Mendel’s ratio
Figure 3-8: Meiosis in a diploid cell of genotype A/a; B/b. The diagram shows how the segregation and assortment of different chromosome pairs give rise to the 1: 1:1: 1 Mendelian gametic ratio.

ANIMATED ART: Meiotic recombination between unlinked genes by independent assortment

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