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Table 1 Mating types, mating frequencies and offspring genotype probabilities after one generation of random mating with transmission probability τ.

From: Increasing incidence of Type 1 diabetes – role for genes?

Mating types Mating frequencies Offspring genotype probabilities
   AA Aa aa
AA × AA 1 0 0
AA × Aa τ (1-τ) 0
AA × aa 0 1 0
Aa × Aa τ2 2τ (1-τ) (1-τ)2
Aa × aa 0 τ (1-τ)
aa × aa 0 0 1
Σ 1    
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