What is PTC taste sensitivity? Briefly comment the technique to detect the tasting ability of a person using the serial dilution method

### PTC Taste Sensitivity and Serial Dilution Method

PTC Taste Sensitivity:

Phenylthiocarbamide (PTC) is a chemical compound that serves as a well-known genetic marker for studying taste sensitivity in humans. The ability to taste PTC is a genetic trait determined by variations in the TAS2R38 gene, which encodes a taste receptor involved in detecting bitter compounds. PTC itself is not naturally occurring in the human diet but is used in research to study genetic variation and taste perception.

The sensitivity to PTC can be classified into three groups based on the genotype of the TAS2R38 gene: "taster," "non-taster," and "super-taster." This classification is due to the presence of alleles that influence the expression and functionality of the TAS2R38 receptor. Individuals with at least one functional allele can taste PTC, while those with two non-functional alleles cannot taste it at all. This genetic trait is ______ _____ _______ ______ _______ _______ ____ ________ _________ _________.
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