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EEMB_2_Final_Ivory

The fitness of the g genotype indicates that a it is

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19. The fitness of the G genotype indicates that: A. It is replacing itself and therefore selectively neutral B. It is increasing in frequency in the genotype pool C. It codes for the second best gene transport machine D. It will eventually predominate in the genotype pool E. None of these answers is correct 20. In general, which statement summarizes the process of evolution by natural selection: Use the following information for the next 5 questions (until you see a solid line): A bird species (the green-winged babbler) has two traits that you suspect may influence sexual selection: a black head plume (A long, soft feather) and green wings. Females’ body coloration is a cryptic brown and they do not have head plumes. Females have a vocalization they use to signal males that they are ready to mate with them. In controlled experiments, males with bigger head plumes received more mating vocalizations from females, and males with brighter green wing coloration received fewer female mating vocalizations but were better able to defend their mating territories from intruders. Males from all other species in the clade to which the green-winged babbler belongs have drab coloration like females, but experiments demonstrate that females from these other species (including those closer to the root compared to the green- winged babbler) all have a strong mating preference for green-winged males. 21. The trait(s) influencing intersexual sexual selection in the green-winged babbler is (are): 22. The trait(s) influencing intrasexual sexual selection is (are): EEMB 2 Final Ivory Version: 0 Page: 6
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23. Suppose that an experiment (that kept juvenile rearing conditions constant) found that the slope of a plot of a sister’s lifetime survival vs. the size of her brother’s head plume was positive. This finding would indicate that the head plume most probably evolved due to: A. sensory exploitation model B. sexy sons model C. sexual conflict model D. material benefits model E. good genes model
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