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Unformatted text preview: Practice Problems, Set I NAME: ___________________ Please work these problems with help from your group. 1. In humans, tongue rolling ability is transmitted by a dominant gene. A woman homozygous for the ability to roll her tongue (R) marries a man homozygous for the inability to roll his tongue (r). What would the genotype and phenotype of their children be? Set up the problem and work it out completely. 2. If a man who could roll his tongue wanted to know whether he was homozygous or heterozygous, what should be the phenotype of the woman he marries? Show the Punnett square for their expected offspring. 3. Complete the Punnett square for the offspring of 2 people heterozygous for tongue rolling. Give phenotypes of offspring....
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