What is the most probable mode of inheritance

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P.T.C. Taster: to some people, the chemical, phenylthiocarbamide, has a strong bitter taste. However there are other individuals who are unable to perceive such a taste sensation.

Tom is able to taste PTC, but his sister, Terri cannot. Both their parents can taste PTC. What is the most probable mode of inheritance?

Reference no: EM13155472

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