According to research presented in the text, the genetic locations that are responsible for determining a person's race:
a. are located on chromosome number 18
b. are located on the X chromosome
c. are located on many genes, including those in chromosomes 18, 19, and 20
d. are probably unique to each individual, and therefore "race" is not a meaningful concept in a genetic sense
d
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Pablo and Diego are identical twins who were given up for adoption shortly after they
were born. Pablo was raised by well-educated parents, but Diego was not. It is likely that Pablo and Diego have a. identical IQ scores because they are identical twins. b. very different IQ scores because they were raised in very different environments. c. similar IQ scores because they are identical twins, but less so than identical twins raised together. d. IQ scores more similar than that of identical twins raised in the same environment. e. an average IQ score that is equal to the average of their biological parents' IQ scores.
Which of the following behaviors represents a type of social phobia?
a) Melanie only leaves her house if one of her sisters is willing to go with her. b) Brad has been unable to graduate from college because he is terrified of taking a required speech class. c) Ellie faints whenever a doctor needs to give her an injection. d) Selma is so afraid of spiders that she refuses to go on picnics in the park.