How were genes identified for bitter tastants?
A) A specific taste was genetically linked to a chromosome region and the DNA sequence examined for a sequence similar to 7TM receptors.
B) Knockout mice were used to determine the exact sequence.
C) A hybridization analysis of all genes expressed in taste buds with 7TM probes was obtained.
D) Protein purification and characterization of a family of proteins were conducted.
E) Taste tests were conducted with humans deficient in 7TM receptors.
Correct Answer:
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