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Test3Key(FormA) - Psychology 100 Spring 2003 Madigan KEY...

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Psychology 100 Spring 2003 Madigan FORM A p. 1 KEY PSYCHOLOGY 100 TEST #3 Behavior Genetics 01. Crossing-over and assortment are two processes that: a. directly influence mate choice b. produce variability in the genomes of siblings c. ensure that important traits will be transmitted from parents to child d. oppose each other 02. Scott and Fuller’s breeding experiments with dogs showed that: a. fear of human strangers seemed to be controlled by a single dominant gene b. hybrid animals when mated produced fearful offspring 90% of the time c. fearfulness could be not be produced in either breed when raised in isolation from people d. all of the above 03. Heritability refers to the proportion of: a. genetic influence involved in a particular trait in a particular individual. b. % of the variability in a trait due to genetic differences in a population . c. genes that two particular individuals have in common. d. genes that a parent will pass on to his or her offspring for a given trait. 04. Which of the following is/are true of the measurement of heritability: a. it produces statistical estimates rather then exact values b. it can vary from 0 to 100, in principle c. heritability of a given trait can vary over populations and over time d. all of the above 05. Which of the following heritable traits have been successfully bred in controlled breeding experiments: a. fearfulness b. aggressiveness c. drinking preferences d. all of the above 06. In Tryon’s experiment on selective breeding for maze-learning ability, after three generations a. maze-bright animals had more cortical cells than maze-dull animals b. maze-bright animals were easier to reinforce than maze-dull animals c. maze-bright animals were generally healthier than maze-dull animals d. it wasn’t clear what systems had been changed by the breeding procedure
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Psychology 100 Spring 2003 Madigan FORM A p. 2 07. Suppose that weight has a heritability of .60. If a large random sample of people were kept on the same diet reduced calorie diet for a long period of time, the heritability estimate of weight in this sample would necessarily ____________. a. increase b. decrease c. increase or decrease, depending on initial weight d. not change 08. With respect to heritability complex traits such as shyness or intellect, which of the following is/are not presently well-understood: a. what the specific gene products are that produce variation in the behavior b. how many genes are involved c. exactly what parts or processes of the nervous system show heritable differences d. all of the above 09. Which process results in the faithful duplication of genetic material? a. genotyping b. crossing over c. mitosis d. meiosis 10. The “pedigree analysis” presented in the textbook shows how ________________ is responsible for _____________.
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Test3Key(FormA) - Psychology 100 Spring 2003 Madigan KEY...

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