Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 22.2, Problem 3CC
Summary Introduction
To determine: The general effects of artificial selection in reference to figure 22.9, figure 22.10, and figure 22.11 given in the textbook.
Introduction: Evolution refers to the changes which can be transferred from the parents to the offsprings. Designing of procedures and programs in order to modify traits in domesticated species is known as artificial selection. In natural selection, parents able to survive and reproduce are selected naturally, whereas in artificial selection parents with desirable traits are selected by the breeder.
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Art Connections
Directions: With the knowledge you gained about the mechanism of evolution,
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1. Give an example of natural selection that happens in your locality.
2. Where do you think genetic drift will likely happen more quickly on an
island or the mainland?
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Using the concepts of variability, environmental pressure and natural selection how does the synthetic theory explain the darwinian natural selection?
VISUAL SKILLS Consider a population in which heterozygotes at a certain locus have an extreme phenotype(such as being larger than homozygotes) that confersa selective advantage. Compare this description to themodels of selection modes shown in Figure 23.13. Doesthis situation represent directional, disruptive, or stabilizing selection? Explain your answer.
Chapter 22 Solutions
Biology
Ch. 22.1 - Prob. 1CCCh. 22.1 - Overview of Evolution Experimental Questions What...Ch. 22.1 - Overview of Evolution Experimental Questions...Ch. 22.1 - Overview of Evolution Experimental Questions...Ch. 22.2 - Prob. 1CSCh. 22.2 - Prob. 1CCCh. 22.2 - Prob. 2CCCh. 22.2 - Prob. 3CCCh. 22.3 - The Molecular Processes Concept Check: Why do...Ch. 22.3 - Prob. 1CS
Ch. 22.3 - Prob. 2CCCh. 22 - Prob. 1TYCh. 22 - Lamarcks vision of evolution differed from Darwins...Ch. 22 - Which of the following scientists influenced...Ch. 22 - Prob. 4TYCh. 22 - Vestigial structures are anatomical structures a....Ch. 22 - Which of the following is an example of a...Ch. 22 - Prob. 7TYCh. 22 - Prob. 8TYCh. 22 - Prob. 9TYCh. 22 - Prob. 10TYCh. 22 - Evolution that results in adaptation is rooted in...Ch. 22 - What is convergent evolution? How does it support...Ch. 22 - Prob. 3CQCh. 22 - Prob. 1COQCh. 22 - Prob. 2COQ
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- Why is mutation important to evolution if it is the microevolutionary force that generally has the smallest effect on allele frequencies?arrow_forwardUnder what scenaries is genetic drift most potent as an evolutionary process? how do factors like population size and initial allele frequences affect likelihood of an allele being lost from a population (or becoming fixed)?arrow_forwardPlease use and cite any source(s) you can find to answer the following questions:1. Define "homologous structures," and explain how they help support evolutionary theory.2. Darwin proposed natural selection as a mechanism for evolution. How is it similar to artificialselection? How is it different?3. For natural selection to work, there must be genetic variation within a population as well asmutations? Why must there be both?4. What is the difference between natural selection and sexual selection?arrow_forward
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