Working with the Vocabulary: In your own words, explain how a person may taste the bitterness of PTC by using the following vocabulary words in your explanation (choose any order): trait, gene, genotype, phenotype, and alleles. Underline each word as you use it in your explanation. In this explanation, you can treat PTC taste sensitivity as a single-gene trait. [As mentioned in the video, it may be more complex than a single-gene trait.]