Consider two traits for an organism, determined by two genes, each of which is governed by at least two alleles. In the case of a dihybrid individual, the gametes formed will be of either the parental type or the recombinant type. Recombinant type gametes are formed because of

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Recombinant type gametes are formed due to independent assortment, which occurs because the genes for the two traits are located on different chromosomes and therefore segregate independently during meiosis. Incomplete dominance, heterozygosity, the principle of dihybrids, and multiple alleles may also play a role in determining an organism's traits, but do not directly explain the formation of recombinant gametes.

Consider Two Traits for an Organism, Determined by Two Genes