Studies involving gene × environment interactions have identified a short version of a gene labeled 5-HTTLPR (a gene involving the neurotransmitter serotonin) that, when combined with a stressful environment, can elevate the risks of developing
A. intelligence.
B. type 2 diabetes.
C. cancer.
D. depression.
Answer: D
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A diet rich in __________ can reduce the risk of many birth defects
a. vitamin A b. folic acid c. omega 3 fatty acids d. teratogens
A wide variety of potential expressions of a genetic trait, depending on environmental opportunities and constraints, is called ______.
A. canalization B. behavioral genetics C. range of reaction D. gene-environment correlation
Shen was injured in an accident. At the hospital, he was given an IV with glucose. What effect would this IV likely have on Shen’s level of hunger??
a. ?It should have no effect. b. ?It should increase his hunger. c. ?It should decrease his hunger. d. ?It should cause his hunger level to fluctuate unpredictably.
In remembering the letter sequence {BYGROUPINGITEMSQUICKLY}, which is NOT true?
a. We use recoding. b. We use larger-than-letter chunks. c. We use an automatic mnemonic strategy. d. We use Process I to help learn the material.