Oh, beta, to find carrier frequency, you use '2pq' from the equation p² + 2pq + q² = 1, if you know the disease gene's rate. But in my village? We don't find carriers by equations, we find them when Auntie's nephew comes home with a city bride and suddenly the family talks of "blood tests." The math is perfect, but people and their marriages? That's the real variable no equation can balance.
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