Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Question
Chapter 42.4, Problem 1CC
Summary Introduction
To analyze:
With regards to the kin selection, an individual should sacrifice to save one sister or 9 cousins.
Introduction:
According to Hamilton, the altruistic gene is favored by the process of natural selection when
rB>C
Here, r is the coefficient of relatedness,
B is the recipient of the benefits, and
C is the cost of the donor.
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Chapter 42 Solutions
Principles of Biology
Ch. 42.1 - Prob. 1CCCh. 42.1 - Prob. 1BCCh. 42.1 - Prob. 2CCCh. 42.1 - Prob. 1TYKCh. 42.1 - Prob. 2TYKCh. 42.1 - Prob. 3TYKCh. 42.2 - Most terrestrial mammals are nocturnal. This means...Ch. 42.3 - Prob. 1CCCh. 42.3 - Prob. 1TYKCh. 42.3 - Prob. 2TYK
Ch. 42.3 - Prob. 3TYKCh. 42.4 - Prob. 1CCCh. 42.4 - Prob. 2CCCh. 42.4 - Prob. 1TYKCh. 42.4 - Prob. 2TYKCh. 42.5 - Prob. 1TYKCh. 42.5 - Prob. 2TYKCh. 42 - Prob. 1TYCh. 42 - Prob. 2TYCh. 42 - Prob. 3TYCh. 42 - Prob. 4TYCh. 42 - Prob. 5TYCh. 42 - Prob. 6TYCh. 42 - Prob. 7TYCh. 42 - Prob. 8TYCh. 42 - Prob. 9TYCh. 42 - Prob. 10TYCh. 42 - Prob. 1CCQCh. 42 - Prob. 2CCQCh. 42 - Prob. 3CCQCh. 42 - Prob. 1CBQCh. 42 - Prob. 2CBQ
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- Dog breeds are an example of artificial selection, which means ______ selected for certain traits in dogs fill the balnkarrow_forwardHow does heterozygote superiority (aka overdominance) differ from underdominance? In your answer describe how each influences genetic diversity in a population.arrow_forwardPretend you are a scientist observing three different varieties of a single bird species that are part of the same population. In three to five sentences, describe what genetic variations exist in your population. Then, using reasoning skills and mock evidence from your observations, describe the impact these traits have on the birds’ relationships with their environment and predators.arrow_forward
- What would happen to the allelic frequency of the deer population after their habitat was blazed in forest fire?arrow_forwardWhy is inbreeding necessary in animal husbandary?arrow_forwardYou are wandering in the Amazon rainforest, when you hear the loud call of an animal. You walk in the direction of the sound, and discover that it is coming from an adorable species of frog. a) What type of adaptation is being displayed by this species of frog? b) Describe how selection could work FOR and AGAINST this adaptation.arrow_forward
- a.)What effect does directional selection have on genetic variation? b.)A population has an allele that encodes for ear size, large ear being dominant and small ear being recessive. The frequency of the dominant allele is .6. What percentage of the population has big ears?arrow_forwardWhich statement about Inbreeding (=consanguinity) is correct? a. Inbreeding has no influence on the degree of homozygosity. b. Inbreeding increases the frequency of homozygotes in a population. c. Inbreeding improves the overall biological fitness of progeny. d. Inbreeding increases the frequency of heterozygotes in a population.arrow_forwardSexual selection tends to cause bigger size,more elaborate weaponry, or brighter colors in males. Is this an example of stabilizing,directional, or disruptive selection?arrow_forward
- If you wanted to crossbreed some Felis lybica to eventually have a domestic cat, what traits would you have to change in the wildcat?arrow_forwardIn the fox taming experiment, two groups of foxes are selected for breeding. What trait(s) did the scientists use for selecting which animals they would breed? There is ONE correct answer. A. Brain Size and Eyesight B. Fur Color and Hearing C. Human Tolerance and Intolerance D. Heat and Cold Tolerancearrow_forwardWhat are the barriers that affects the mating of species (in relationship with inbreeding)?arrow_forward
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