Separated Species A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change. Original Environment North side Environments after separation by water 5% 5% 5% 4% South side The table shows the frequency of fur color across the populations when the mice were separated by the water. North Side Light fur Medium furDark furSouth Side Light fur Medium fur Dark fur Generation 1 85% 12% 3% Generation 1 90% 5% 5% Generation 5 50% Generation 570% 23% 45% 75% 87% 7% 5% Generation 10 20% Generation 10 37% Generation 15 8% Generation 15 10% Generation 20 0% 96% Generation 200% 6% Environment after water dries up 6% 58% 84% 94% The frequency for dark-colored fur increased on the south side. The frequency for medium-colored fur increased on the north side. The frequency for dark-colored fur increased on the north side. The frequency for medium-colored fur increased on the south side. The frequency for light-colored fur increased on the north side.
Separated Species A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change. Original Environment North side Environments after separation by water 5% 5% 5% 4% South side The table shows the frequency of fur color across the populations when the mice were separated by the water. North Side Light fur Medium furDark furSouth Side Light fur Medium fur Dark fur Generation 1 85% 12% 3% Generation 1 90% 5% 5% Generation 5 50% Generation 570% 23% 45% 75% 87% 7% 5% Generation 10 20% Generation 10 37% Generation 15 8% Generation 15 10% Generation 20 0% 96% Generation 200% 6% Environment after water dries up 6% 58% 84% 94% The frequency for dark-colored fur increased on the south side. The frequency for medium-colored fur increased on the north side. The frequency for dark-colored fur increased on the north side. The frequency for medium-colored fur increased on the south side. The frequency for light-colored fur increased on the north side.
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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Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
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Transcribed Image Text:Separated Species
A population of mice live in a light, sandy environment. The majority of mice have light-colored fur, and the remaining mice have either medium-colored fur or dark-colored fur. A flood occurs in the
area, creating a river that separates the population and changes the color of the ground on either side. After a long period of time, the water dries up and the two groups of mice are able to interact
again. After the change, mice from different sides are unable to breed with each other. The pictures show the environment before, during, and after the change.
Original Environment
Generation 5 50%
Generation 10 20%
Generation 15 8%
The table shows the frequency of fur color across the populations when the mice were separated by the water.
North Side Light fur Medium fur Dark fur South Side
Light fur Medium fur Dark fur
90% 5%
Generation 1 85%
12%
3%
5%
Generation 20 0%
45%
75%
87%
96%
North side
5%
5%
Environments after
separation by water
5%
4%
South side
Generation 1
Generation 5
70%
Generation 10 37%
Generation 15 10%
Generation 20 0%
7%
5%
6%
Environment after
water dries up
6%
23%
58%
84%
94%
Which TWO things occurred as a result of the environmental change?
A.
B.
C.
D.
E.
The frequency for dark-colored fur increased on the south side.
The frequency for medium-colored fur increased on the north side.
The frequency for dark-colored fur increased on the north side.
The frequency for medium-colored fur increased on the south side.
The frequency for light-colored fur increased on the north side.
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