The ability to taste PTC is determined by what?

Understand the Problem

The question is asking about the genetic factors that determine the ability to taste phenylthiocarbamide (PTC), which is related to specific gene variations. This involves understanding genetic inheritance and the influence of alleles on taste perception.

Answer

A single gene (TAS2R38) determines the ability to taste PTC.

The ability to taste PTC is determined by a single gene that codes for a taste receptor on the tongue, known as TAS2R38.

Answer for screen readers

The ability to taste PTC is determined by a single gene that codes for a taste receptor on the tongue, known as TAS2R38.

More Information

The gene TAS2R38 on chromosome 7 codes for this taste receptor, and the ability to taste PTC is dominant, represented by the allele ‘T’.

Tips

A common mistake is to assume multiple genes are involved when it is actually a single gene trait.

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