A. Vary in height because of genetic differences between groups. B. Vary in height primarily because of the degree of various stressors on each population. C. Remained short for several centuries, then became much taller over the last 50 years. D. Have consistently grown taller over the last two centuries. 2. Enlightenment Era scientists who had begun to categorize the natural world also created "scientific" categories of race that were used to justify inequality and slavery. True or False 3. According to "The Story of Race", what did the eugenics movement in the U.S. seek to prove? A. That lower intelligence and criminal behavior were genetically based traits of the lesser races. B. That the racial superiority argument put forth by Nazi Germany was immoral and incorrect. C. That systematic discrimination against immigrants was unacceptable. D. That all men and women were biologically equal. 4. Catarrhini are generally smaller and arboreal, compared to Platyrrhini. True or False 5. Which of the following is a member of the Strepsirhini? A. Tarsiers. B. Aye-ayes. C. Marmosets. D. Siamangs.
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- The question asks about the historical trends in human height. - Option A suggests genetic differences between groups. - Option B suggests stressors affecting height. - Option C suggests a recent increase in height after centuries of being short. - Option D Show more…
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Q1: Different human communities: a. have the same potential for the known genetic diseases. b. all have the same potential for most diseases, but for some groups the disease is environmental; for others, it is genetic. c. vary in the incidence of many genetically transmitted diseases. d. have similar genetic diseases but vary in how the diseases are accepted culturally. Q2: An evolutionary approach to human behavior: a. does not imply that differences in behavior among humans are the product of genetic differences between individuals. b. implies that differences in behavior among humans are the product of genetic differences between individuals. c. could not be done prior to the discovery of DNA and the development of the field of genetics. d. is possible only because there is a hominin fossil record, which enables researchers to study human ancestry. Q3: The "nature-nurture question" proposes that: a. there is a clear distinction between the effects of genes (nature) and the effects of the environment (nurture). b. people vary simply because they have different genes (nature) and live in different environments (nurture). c. all of human behavior is determined by genes (nature). d. the expression of genes (nature) is dependent upon the local environment (nurture). Q4: Which of the following statements about culture is true?: a. It is common in other mammals. b. It is common in other primates, but cumulative cultural change is rare in non-humans. c. It is common in other primates and is also cumulative, just as in humans. d. It occurs only in humans. Q5: Animals with long life histories, like primates, grow for a long time at the expense of their: a. early growth. b. later growth. c. early fertility. d. later fertility. Q6: Which of the following statements concerning climate change is correct?: a. Europe was never tropical. b. Cold areas of the world today, such as Alaska, were always cold. c. Because Pangaea was so large, it probably had cold winter weather, like Asia does today. d. Because Pangaea was so large, it facilitated the circulation of water from the tropics to the poles. Q7: In the geological period known as the Miocene, what occurred in Africa?: a. It experienced less rain and was more seasonal. b. It became warmer and wetter. c. It shifted south to Antarctica. d. It had an expansion of dense forests. Q8: The evolution from hominoid to hominin occurred during an ecological transformation of: a. a single continent (Pangaea) breaking into multiple continents. b. desert to swamp. c. savanna to forest. d. forest to savanna. Q9: What distinguished early Homo from australopiths?: a. an occipital torus. b. smaller teeth. c. a prognathic face. d. faster life histories.
Madhur L.
1a) Which of the following situations could decrease the average fitness of a population? Select one: a. All are correct b. Snakes in a small, reproductively isolated population must breed with blood-relatives. c. Wind-dispersed seeds arrive on an island, germinate and begin breeding with the existing island population. d. A sudden forest fire kills 95% of a population of minks, leaving behind the remaining 5% to repopulate the area. e. Atlantic salmon adapted to live in captivity escape from a fish farm and breed with wild stocks. 1b) Tay-Sachs disease is a recessive genetic disease. Individuals with this disease rarely survive past the age of four. In the general population, approximately 1 person in 300 carries the allele for this disease. However, in some populations, including the Irish Americans, the Ashkenazi Jews, and the Cajuns from Louisiana, the proportion of Tay-Sachs carriers is much higher (1 in 27 to 1 in 50) than in other populations. Which evolutionary scenario can be predicted to produce a high frequency of Tay-Sachs disease in these populations? Select one: a. These populations experienced disruptive selection b. These populations experienced stabilizing selection c. These populations have higher than average mutation rates d. All three populations descend from a small number of settlers e. The Tay-Sachs allele is advantageous at the heterozygous state 1c) Binomial nomenclature is made up of which of the following? Select one: a. Order, Class b. Species, Order c. Species, family d. Species, genus e. Genus, family 1d) Which statement is false? Select one: a. Sexual reproduction creates new combinations of alleles at different loci. b. Only mutations can create new alleles. c. Stabilizing selection decreases the variation within populations. d. Gene flow decreases the genetic differences among populations. e. Phenotypic variation is always heritable.
Match each of the following terms with its correct definition (parts a through $i$ ). _________phenocopy _________pleiotrophy _________polygenic trait _________penetrance _________sex-limited trait _________genetic maternal effect _________genomic imprinting _________sex-influenced trait _________anticipation a. the percentage of individuals with a particular genotype that express the expected phenotype b. a trait determined by an autosomal gene that is more easily expressed in one sex c. a trait determined by an autosomal gene that is expressed in only one sex d. a trait that is determined by an environmental effect and has the same phenotype as a genetically determined trait e. a trait determined by genes at many lod f. the expression of a trait is affected by the sex of the parent that transmits the gene to the offspring g. the trait appears earlier or more severely in succeeding generations h. a gene affects more than one phenotype i. the genotype of the maternal parent influences the phenotype of the offspring
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