Exam 4: Genes, Evolution, and Behaviour

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Unlike the blueprints for a house,a person's genetic blueprint is not observable.Identical twins may have the same genotype but given different environmental influences,their ________ may be quite unique.

(Multiple Choice)
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To gain a better understanding of the relative importance of heredity and environment,scientists study pairs of twins raised ________ compared to the rarer case of pairs of twins raised ____.

(Short Answer)
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Twin studies have consistently revealed that the factor that accounts for the least amount of variation in personality trait attributes is:

(Multiple Choice)
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Barbara and Brenda are identical twins who were adopted at birth and raised by two different families.Andy and Andrew are identical twins raised together by their biological parents.When the four children entered high school they took an IQ test.Barbara and Andy each had scores of 110,while Brenda's IQ was measured at 120 and Andrew scored 108.These results support which of the following conclusions?

(Multiple Choice)
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Based on Hans Eysenck's work on genetic components of personality,research has shown that the personality trait neuroticism is related to increased action of the neurotransmitter _______.

(Multiple Choice)
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The change that occurs over time in the frequency with which certain genes occur in a population is called _____________.

(Short Answer)
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Justin has three wives,and several children with each wife.Which type of mating system describes Justin's situation?

(Multiple Choice)
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Of the list below,genetically speaking,which pair of individuals is most alike?

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Some research has shown that identical twins raised apart are still more similar than fraternal twins raised together.

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According to parental investment theory,the gender that typically has the greater investment in producing offspring will be:

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Scott and Shawn are identical twins raised together,whereas Tammy and Tracey are identical twins raised apart.Scott and Shawn are more similar on IQ than are Tammy and Tracey.This finding:

(Multiple Choice)
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When sperm fertilizes an egg,the new cell has:

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Evolutionary personality theorists speculate the personality traits of conscientiousness and agreeableness may have played an important role in:

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Dominance hierarchies are the result of:

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Keith and Kirk are identical twins who were separated at birth and raised in different parts of the country in different environments.When as adults they were reunited,researchers compared them on several psychological characteristics.Compared to identical twins that have been raised together,Keith and Kirk probably have:

(Multiple Choice)
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Status in a dominance hierarchy is often achieved through _________ in all species.

(Short Answer)
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Polygenic transmission occurs when:

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Which of the following gender differences in mate preference has been found?

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Natural selection refers to

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The ______________ theory assumes that individuals are most likely to show altruistic behaviours toward offspring and relatives.

(Short Answer)
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