The TAS2R38 gene encodes a taste receptor protein located on the cell-surface membrane of taste buds, which binds to bitter-tasting compounds such as phenylthiocarbamide (PTC). A mutation in this gene can result in a non-functional receptor protein, making an individual unable to detect bitter tastes.
Explain how a mutation in the DNA sequence of the TAS2R38 gene can result in the production of a non-functional receptor protein.
