What Might Cause a Person to Have an Inability to Detect

Multiple Choice

What might cause a person to have an inability to detect a particular chemical in the environment that most other members of the population can perceive?

A) mutations is a specific gene encoding the odorant receptor for that particular chemical
B) mutations in the genes for all odorant molecules
C) mutations in the genes for G proteins
D) mutations in the genes for neurotransmitters
E) mutations in the gene for one neurotransmitter