Our Origins: Discovering Physical Anthropology (Fourth Edition)
4th Edition
ISBN: 9780393614008
Author: Clark Spencer Larsen
Publisher: W. W. Norton & Company
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Chapter 4, Problem 1ER
Summary Introduction
To provide: An example for each type of evolution and give which one of the four force of evolution will not be operating on groups undergoing macroevolution.
Introduction: The evolution is the process by which the heritable characteristics of an organism change over successive generations. It is often results in new species development. These heritable characteristics are the expressions of genes that passed during reproduction from parent to offspring.
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Fitness is, most correctly, a technical term. What does it mean? What two things do you suppose govern the rate of evolution by natural selection? Explain how Darwinian evolution can decrease and increase the frequency of an allele (or a more complex heritable trait, for that matter). Write it in an essay form
Fitness is most correctly,a technical term.what does it mean ?what two things do you suppose govern the rate of evolution by natural selection? explain how darwinian evolution can decrease and increase of an allele (or a more heritable traits,for that matter )
Fitness is, most correctly, a technical term.what does it mean? What two things do you suppose govern the rate of evolution by natural selection ? Explain how darwanian evolution can decrease and increase the frequency of an allele.
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Our Origins: Discovering Physical Anthropology (Fourth Edition)
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What is the role of variation in evolution-if heterozygosity is reduced, what happens to the potential for evolution? The phenotype and genotype of a population is due to a mosaic of random and directed processe.some of these have to do with history; some are related to adaptation, etc. As completely as possibl, discuss the role of chance and direction in evolution and in determining the phenotype of a population.arrow_forwardFitness is mostly correctly, a technical term.what does it mean?. What two things do you suppose Govern the rate of evolution by natural selection. Explain how Darwinian evolution can decrease and increase the frequency of an allele. (or a more complex heritable trait, for that matter)arrow_forwardAccording to the Hardy-Weinberg Equilibrium Equation, all of the following slow down or stop evolution EXCEPT (choose as many as apply): Group of answer choices very small population very large population no one leaves or comes into the population everyone has equal numbers of offspring there are no mutations there are lots of mutations there is non- random matingarrow_forward
- Evolution is a change in frequencies of alleles in the gene pool of a population. This definition of evolution was developed a result of the work in the 20th century by Hardy and Weinberg. Through mathematical modeling based on probability, they concluded that allele and genotype frequencies in a population will remain constant from generation to generation absence of evolutionary influences. Evolution will not occur in a population if seven conditions are met: 1. mutation is not occurring 2. natural selection is not occurring 3. the population is infinitely large 4. all members of the population breed 5. mating is totally random 6. everyone produces the same number of offspring 7. there is migration in or out of the population One of the criteria in the prompt above has been mis-typed. Correct the erroneous phrase so evolution will NOT occur.A) (5) There is sexual selection.B) (1) Mutation occurs within the population.C) (4) The fittest members of the population breed.D) (7)…arrow_forwardGraph 2: Draw the predictions of a population genetics model when the starting allele frequency of the A1 allele is 0.2, individuals that are homozygous for the A1 allele have a 5% increase in fitness, and otherwise all assumptions of the Hardy Weinberg model are true. 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0arrow_forwardFitness is, most correctly, a technical term.What does it mean? What two things do u suppose govern the rate of evolution by natural selection? Explain how Darwinian evolution can decrease and increase the frequency of an allele (or a more complex heritable trait, for that matter).arrow_forward
- What is variation in evolution-if heterozygosity is reduced,what happens to the potential for evolution?the phenotype(genotype)of the population is due to the mosaic of random and directed processes.some of these have to do with history.some related to adaptation etc.as completely as possible discuss the role of the chance and direction in variation in evolution and in determinijg the phenotype of a populationarrow_forwardApply the VIDA table to the evolution of sickle cell disease to justify whether it is an instance of evolution by natural selection. Answer the following questions. Is there variation in this trait in the population? How exactly does it vary? Is the trait at least partly inherited? Is there selection for this trait in a particular environment? (What is the selective pressure? And how does a trait give an advantage or disadvantage in that environment?) What is the evidence that this trait makes organisms better adapted to their environment?arrow_forward
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