In a disease that is associated with a single recessive allele, the concordance among dizygotic twins should be .

Name: In a disease that is associated with a single recessive allele, the concordance among dizygotic twins should be .
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Dizygotic twins share, on average, 50% of their genes. For a recessive disease, both twins would need to inherit the recessive allele from both parents. The probability of both twins inheriting the recessive allele from both parents is 25%.

In a Disease That Is Associated with a Single Recessive