The presence of an individual with the recessive condition from unaffected parents, II-1 and II-2, suggests that these parents are both heterozygous. We can follow the constructed Punnet square below:
Individuals III-3 and III-3 are expecting their first child when they became aware that they both havea family history of this recessive condition. As counselor, you can calculate the probability that they are carriers and that their child will be affected with the condition.
What is the probability that III-3 is a carrier (Rr)?
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