PTC gene has two main alleles; one that codes for tasting and the other non-tasting. The allele for tasting determines a trait of tongue papillae that can bind the PTC molecules. Non-tasting allele forms papillae that are unable to bind PTC effectively. Therefore, the combination of these alleles in the genotype of a person determines their phenotype – PTC sensitivity.
Answer:
PTC stands for phenylthiocarbamide.
Explanation:
The taste bud of the human tongue is under the control of the PTC genes. a gene pair has two alleles that might be dominant or recessive depending on the requirement.
The human tongue has 4 taste receptors which are responsible for the different types of tastes in the tongue.
The one alleles of the gene pair are responsible for the formation of taste buds, while the other alleles are responsible for the formation of the unfunctional taste buds.
Therefore, the arrangement of these alleles is responsible for the PTC sensitivity.
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