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Suppose you are a researcher studying a population of beach mice living in the coastal dunes of Florida. You notice that, although there is some variation in coat color, most of the mice have fairly light fur, which appears to help them blend into the sandy dunes. 1) After several experiments, you are able to determine that mice with extremely light or very dark coat colors are more easily detected by predators and you conclude that mice with those coat colors normally have lower fitness. 2) You are given permission to try to establish a new colony of beach mice at a nearby, protected beach. You are able to capture 15 mice and transfer them to the protected beach. However, by chance, the mice you captured have a higher proportion of dark colored coats than the original population did. 3) The dunes on the new beach are a darker color than the original beach, which allows the dark mice to survive better than the light-colored mice. After a few years, you are able to determine that your population of beach mice is expanding rapidly, and that they have a higher proportion of alleles for dark coat color that the original transplanted population did. 4) After the population has been established for more than a decade, the storm surge from a hurricane kills the majority of the population, although the population is eventually able to rebound. Which numbered stage(s) in this scenario illustrate directional selection?

Suppose you are a researcher studying a population of beach mice living in the coastal dunes of Florida. You notice that, although there is some variation in coat color, most of the mice have fairly light fur, which appears to help them blend into the sandy dunes. 1) After several experiments, you are able to determine that mice with extremely light or very dark coat colors are more easily detected by predators and you conclude that mice with those coat colors normally have lower fitness. 2) You are given permission to try to establish a new colony of beach mice at a nearby, protected beach. You are able to capture 15 mice and transfer them to the protected beach. However, by chance, the mice you captured have a higher proportion of dark colored coats than the original population did. 3) The dunes on the new beach are a darker color than the original beach, which allows the dark mice to survive better than the light-colored mice. After a few years, you are able to determine that your population of beach mice is expanding rapidly, and that they have a higher proportion of alleles for dark coat color that the original transplanted population did. 4) After the population has been established for more than a decade, the storm surge from a hurricane kills the majority of the population, although the population is eventually able to rebound. Which numbered stage(s) in this scenario illustrate directional selection?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Suppose you are a researcher studying a population of beach mice living in the coastal dunes of Florida. You notice that, although there is some variation in coat color, most of the mice have fairly light fur, which appears to help them blend into the sandy dunes. 1) After several experiments, you are able to determine that mice with extremely light or very dark coat colors are more easily detected by predators and you conclude that mice with those coat colors normally have lower fitness. 2) You are given permission to try to establish a new colony of beach mice at a nearby, protected beach. You are able to capture 15 mice and transfer them to the protected beach. However, by chance, the mice you captured have a higher proportion of dark colored coats than the original population did. 3) The dunes on the new beach are a darker color than the original beach, which allows the dark mice to survive better than the light-colored mice. After a few years, you are able to determine that your population of beach mice is expanding rapidly, and that they have a higher proportion of alleles for dark coat color that the original transplanted population did. 4) After the population has been established for more than a decade, the storm surge from a hurricane kills the majority of the population, although the population is eventually able to rebound. Which numbered stage(s) in this scenario illustrate directional selection?
Transcribed Image Text:Suppose you are a researcher studying a population of beach mice living in the coastal dunes of Florida. You notice that, although there is some variation in coat color, most of the mice have fairly light fur, which appears to help them blend into the sandy dunes. 1) After several experiments, you are able to determine that mice with extremely light or very dark coat colors are more easily detected by predators and you conclude that mice with those coat colors normally have lower fitness. 2) You are given permission to try to establish a new colony of beach mice at a nearby, protected beach. You are able to capture 15 mice and transfer them to the protected beach. However, by chance, the mice you captured have a higher proportion of dark colored coats than the original population did. 3) The dunes on the new beach are a darker color than the original beach, which allows the dark mice to survive better than the light-colored mice. After a few years, you are able to determine that your population of beach mice is expanding rapidly, and that they have a higher proportion of alleles for dark coat color that the original transplanted population did. 4) After the population has been established for more than a decade, the storm surge from a hurricane kills the majority of the population, although the population is eventually able to rebound. Which numbered stage(s) in this scenario illustrate directional selection?
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