Consistently, the short 5-HTTLPR genotype combined with maladaptive parenting leads to
A) externalizing problems, including defiance and aggression.
B) inhibited social behavior and very low rates of peer acceptance.
C) decreased emotional reactivity as a result of withdrawal.
D) increased fearfulness during maternal separation.
Answer: A
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Which of the following statements is true of the activity of neurons?
a. The nerve impulse fades in strength as it travels through the neuron. b. Transmission of information at synapses occurs by means of direct physical contact between the nerve cells. c. The size and speed of the neural impulse is the same for a particular axon regardless of the strength of the stimulus that sets it off. d. None of the above are true.
Why are the average heights and weights of children in early childhood in developing countries considerably lower than developed countries?
a. poor nutrition and diseases b. poor school lunches and poorly trained teachers c. children in developing countries are obese d. genetically the heights of these children are at maximum