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Ability to taste phenylthiocarbamide (PTC) is mostly determined by the gene PTC. The letters T and...

  1. Ability to taste phenylthiocarbamide (PTC) is mostly determined by the gene PTC. The letters T and t are used here to simplify analysis. TT individuals taste a strong bitter taste; Tt people experience a slightly bitter taste: tt individuals taste nothing. A fifth-grade class of 20 students tastes PTC that has been applied to small pieces of paper, rating the experience as “very yucky” (TT), “I can taste it” (Tt), and “I can’t taste it” (tt). For HW, the students test their parents, with these results:
      1. Of six TT students, four have two TT parent and the remaining two have one each of TT and Tt parents.
      2. Of four Tt students, who have two parents who are Tt, and two have one parent who is TT and one parent who is tt.
      3. Of the 10 students who can’t taste PTC, four have two parents who are also tt, but four students have one parent who is Tt and one who is tt.   The remaining two student have two Tt parents.
    2. Calculate the frequencies of T and t alleles in the two populations (parents and children). Is the Hary-Weinberg Equilibrium maintained.

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gladiator answered 2 months ago
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