Perfect pitch is the ability to identify a note when it is sounded. In a study of this behavior, perfect pitch was found to predominate in females (24 out of 35 in one group). In one group of seven families, individuals in each family had perfect pitch. In two of those families, the affected individuals included a parent and a child. In another group of three families, three or more members (up to five) of each had perfect pitch, and in all three families, two generations were involved. Given this information, what, if any, conclusions can you draw about whether this behavioral trait might be genetic? How would you test your conclusion? What further evidence would be needed to confirm your conclusion?
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Chapter 18 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
- Describe and give an example of a dominance hierarchy. What role does it play in social behavior? Give a human parallel, and describe its role in human society. Are the two roles similar? Why or why not? Repeat this exercise for territorial behavior in humans and in another animal.arrow_forwardYou were given two examples of learning in class. One related to wasps using landmarks to find nesting sites. The other related to mate choice in birds where the females were exposed to potential mates with artificial crests on their heads. What is the difference in the learning between the two studies? Group of answer choices the wasp study looked at the relatedness among individuals doing the learning both studies demonstrated that the behavior was purely genetic with no learning involved the bird study studied learning and development, permanent changes in behavior as a result of juvenile experience the wasp study studied learning and development, permanent changes in behavior as a result of juvenile experiencearrow_forwardWhat is individual variation? Provide specific types of individual variation of behaviorarrow_forward
- The majority of children demonstrate consistent patterns of behavior that are indicative of one of the three major temperament types (easy, slow to warm, difficult). part a) What factors influence a child's temperament? part b) What advice would you give a parent whose child is slow to warm up or difficult in a new situation?arrow_forwardthe answer is NOT "count"arrow_forwardImagine that you’re studying a species of bird. Let’s say the House Sparrow. You are interested in whether the species exhibits personality and whether there is selection on personality traits. Design an observational and experimental study to determine whether House Sparrows have a personality and, separately, design a study that would test the idea that there is currently selection on this trait(s)arrow_forward
- How is Return Demonstration link to the Behaviorist Learning theory? Note: Please provide answers in paragraph form and not in point formarrow_forwardA personality psychologist is interested if being a snob is heritable. To answer this question a personality psychologist recruits a huge sample of 2,593 identical twins and found that identical twins were similar in how snobby they were with an effect size of r=0.6. They also recruit a huge sample of 1845 fraternal twins and found that fraternal twins were also similar in how snobby they were with an effect size of r=0.4. Calculate the heritability coefficient for being a snob.arrow_forwardDefine behaviorally isolatedarrow_forward
- The acquisition of memories can be demonstrated in rodents on a T-maze task. In this task, a food reward is placed in one of two arms of a T. Over many trials, a rodent is required to learn which arm contains the reward. In an experiment to determine whether the gene Homeriav is involved in memory, a mouse was trained on a T-maze. The results over five trials of training are shown: a. This task tests both innate and learned behaviors. Describe the innate behavior tested by this task. Explain how innate behaviors contribute to the survival of a species. b. A scientist reviewing this experiment notes that insufficient controls were performed to determine whether mutations in Homer1aV affects the function of physiological systems outside of the nervous system. Identify a physiological system outside of the nervous system that contributes to the performance of this task. Explain how the function of this system contributes to the task. c. Describe how the consumption of food by the rodent…arrow_forwardThe acquisition of memories can be demonstrated in rodents on a T-maze task. In this task, a food reward is placed in one of two arms of a T. Over many trials, a rodent is required to learn which arm contains the reward. In an experiment to determine whether the gene Homeriav is involved in memory, a mouse was trained on a T-maze. The results over five trials of training are shown: a. This task tests both innate and learned behaviors. Describe the innate behavior tested by this task. Explain how innate behaviors contribute to the survival of a species. b. A scientist reviewing this experiment notes that insufficient controls were performed to determine whether mutations in Homer1aV affects the function of physiological systems outside of the nervous system. Identify a physiological system outside of the nervous system that contributes to the performance of this task. Explain how the function of this system contributes to the task. c. Describe how the consumption of food by the rodent…arrow_forwardWhy imprinting is considered as a learned behavior and not an innate behavior?arrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning