You are observing a grouse population in which two feather phenotypes are present in males. One is relatively dark and blends into the shadows well, and the other is relatively bright and more obvious to predators. The females are uniform dark feathered. Observing the frequency of mating between females and the two types of males, you have recorded the following:Mating’s with dark feathered males: 13mating’s with a bright feathers male: 32Propose a hypothesis to explain why females apparently prefer bright feathered males. What selective advantage might there be in choosing a male with alleles that make it more susceptible to predation? What data would help test this hypothesis?

In the grouse population, males have two feather morphologies. One of the male phenotypes is dark…

Answered: You are observing a grouse population…

You are observing a grouse population in which two feather phenotypes are present in males. One is relatively dark and blends into the shadows well, and the other is re

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 8QP: How Can We Measure Allele Frequencies in Populations? In a population where the females have the...

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Concept explainers

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.

Question

You are observing a grouse population in which two feather phenotypes are present in males. One is relatively dark and blends into the shadows well, and the other is relatively bright and more obvious to predators. The females are uniform dark feathered. Observing the frequency of mating between females and the two types of males, you have recorded the following:
1. Mating’s with dark feathered males: 13
2. mating’s with a bright feathers male: 32

Propose a hypothesis to explain why females apparently prefer bright feathered males. What selective advantage might there be in choosing a male with alleles that make it more susceptible to predation? What data would help test this hypothesis?

Definition Definition Observable physical traits or characteristics of an organism, which are determined by its genetic makeup (genotype) as well as environmental factors. These traits can include anything from eye color or height to behavior or disease susceptibility. Understanding an organism's phenotype is important in fields such as genetics, medicine, and ecology.

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