Question 7 (1 point) Genes can affect behavior by encoding proteins that function as neurotransmitter transporters, neurotransmitter receptors, and enzymes that control the synthesis a) of neurotransmitters and myelin b) alter synaptic connections when a person thinks a certain way. form connective tissue d aggregate to form synapses. al are neurotransmitters or neuroreg ulators. Save Question 8 (1 point) As individuals age, heritability of IQ a) remains relatively constant b) increases decreases. d) becomes impossible to assess. Save Question 9 (1 point) Dr. Gregory House, a character on a television program experiences severe withdrawal symptoms when he stops taking hydrocodone, a drug that he originally took to alleviate leg pain, but has not been able to give up He is exhibiting a) dependence. b) narcissism. tolerance d) paranoia al suicidal ideation.