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Problem: Look at the pedigree below. Let's say that individual 2 has achild with a man who does not have the disease and is not a carrier (FF). What are the results of their cross? Do a Punnet Square.A. 50% Ff, 50% F?B. 50% FF, 50% F?C. 50% FF, 50% FfD. We cannot determine this because we don't know the genotype of individual 2.

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It can be seen from the pedigree that the disease is transmitted as an autosomal recessive. The parents of individuals 1-3 are both unaffected but they had children who are affected. That makes these parents both heterozygous. But despite knowing their genotypes, we still cannot be definite with the genotype of individual 2.

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Problem Details

Look at the pedigree below. Let's say that individual 2 has achild with a man who does not have the disease and is not a carrier (FF). What are the results of their cross? Do a Punnet Square.

A. 50% Ff, 50% F?

B. 50% FF, 50% F?

C. 50% FF, 50% Ff

D. We cannot determine this because we don't know the genotype of individual 2.

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What scientific concept do you need to know in order to solve this problem?

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Reece's class at CSU.