ABO and RhD inheritance: genotype scenarios

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ABO and RhD inheritance: genotype scenarios

Explore common ABO and simplified RhD inheritance from selected parent genotypes. Unknown genotypes produce ranges across scenarios, not invented average probabilities.

An educational Mendelian model, not a blood test. A phenotype alone does not identify every parent genotype. Unknown options enumerate possible genotypes without assigning population frequencies.

Parent 1: ABO

Parent 1: simplified RhDParent 2: ABOParent 2: simplified RhD

Rare ABO variants, Bombay phenotype, weak/partial D and other exceptions are not modelled. Do not use results for paternity, transfusion, pregnancy care or diagnosis. Actual blood type requires laboratory testing.

Quick start

Explore common ABO and simplified RhD inheritance from selected parent genotypes. Unknown genotypes produce ranges across scenarios, not invented average probabilities.

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