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five taste senses
Some basic Wikipedia articles to get started
bitter
taste § bitterness
bitter taste evolution
bitterant
bittering agent
BitterDB
— a database of bitter compounds
sensitivity to some bitter substances varies by genetics
phenylthiocarbamide (PTC)
— one of the two chemicals that scientists use to study bitter taste variation
propylthiouracil (PTU)
— one of the two chemicals that scientists use to study bitter taste variation
PTC tasting
Category:bitter compounds
TAS2R38
— a bitter taste receptor
across several taste senses
gustducin
— a protein found in some taste receptor cells