Which of the following is the best example of the expressivity of genes?
A) Michelle and Michael are twins and they exhibit similar behaviors.
B) Manuel's tendency to be emotional is determined by recessive genes he received from both his parents.
C) Clara's blood type is AB because her mother was heterozygous for type B and her father was heterozygous for type A.
D) Linda received a dominant gene for freckles from her father, but Linda's freckles are smaller, lighter, and more widely scattered than those of her father.
D
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Homosexuality and heterosexuality are described in the textbook as
a. dispositions. b. choices. c. orientations. d. biologically determined.
You deprive your dog of food just before you begin training him to sit down on command. You give your dog food only when he sits on the floor after you press on his back. Pretty soon your dog is sitting on the floor consistently
According to Skinner, your dog's behavior has been caused by a. his desire to get the food. b. his feelings of extreme hunger. c. a combination of his innate intelligence, problem-solving ability, and motivation. d. deprivation and the use of his food as reinforcement.
You are looking for information on nicotine in a book that groups substances by major category. Which category will contain the information you need?
a) opiates b) narcotics c) stimulants d) depressants
Whereas the results of psychological tests are often reported at the ______ level, the results of surveys are often reported at the ______ level.
A. individual; group B. group; individual C. basic; advanced D. advanced; basic