One form of anemia (blood disease) is inherited as an autosomal dominant trait. In homozygotes, this disease leads to death, in heterozygotes it manifests itself in a mild form. A woman with normal vision, but with mild anemia gave birth to two sons from a healthy (by blood) male color blind man – the first, suffering from mild anemia and color blindness, and the second, completely healthy. Identify the genotypes of parents, sick and healthy sons. What is the probability of the birth of the next son without anomalies?
1) Genotypes of parents AaXdX and aaXdY.
2) Gametes AXd, AX, AXd, AX, AXd, aY.
3) The probability of having a son without anomalies with the aaXY genotype is 1/8.
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