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The ability to taste the chemical, phenylthiocarbamide (PTC), is determined by a gene on chromosome 7...

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Biology

  1. The ability to taste the chemical, phenylthiocarbamide (PTC),is determined by a gene on chromosome 7 that shows dominantinheritance. PTC-like chemicals are found in vegetables likebroccoli and cabbage. Tasters don’t enjoy eating these types ofvegetables while non-tasters don’t notice this bitter taste inthese vegetables. (T= ability to taste PTC; t= non-taster)Determine the probability that the following couples (a, b,and c) will have a non-taster child. Support your answer with aPunnett square.
    1. Two tasters, who are both heterozygous:
    1. A non-taster marries a taster who is homozygous:
    2. Two non-tasters:
    3. Can a non-taster have 2 biological parents that are bothtasters?

Answer & Explanation Solved by verified expert
4.2 Ratings (729 Votes)
Alleles of the trait tasting areT ability to taste PTC dominant allelet nontaster recessive alleleGenotypes and phenotypes areTT TasterTt Tastertt Non tastera Punnet squareBoth parents are    See Answer
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