Which statement is correct regarding the role of the liver in the regulation of eating?
A. Activation of lipid metabolism within the liver leads to eating.
B. Cutting the vagal afferent outputs of the liver does not alter the effects of hepatic portal 2-DG on eating.
C. Glucoprivation within the liver after infusion of 2-DG leads to eating.
D. The liver receives signals from the brain to release insulin after a meal.
Answer: C
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Which statement concerning emotional lives is true?
a. Older adults have more depressed emotional lives than young adults. b. Negative emotions are less common in older adults than in younger adults. c. Younger adults experience longer-lasting periods of positive emotions. d. No differences exist in the typical emotional lives of young versus older age adults.
Gene expression refers to the a. division of the chromosomes in half during the formation of eggs and sperm
b. passing along of genes that are located close to one another on a chromosome. c. conversion of genetic instructions into a feature of a living cell. d. imprinting of particular genes.
High normal testosterone levels a. are not related to delinquent behavior
b. do not predict a male's level of aggression. c. are negatively correlated with male aggression d. are positively correlated with male aggression.
Describe the perspective on human development provided by molecular genetics, and explain why it adds value to the established field of behavioral genetics.
What will be an ideal response?