Answered: human evolution

Science

Biology

human evolution

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter20: Development Of Evolutionary Thinking

Section: Chapter Questions

Problem 11TYK: Which of the following does not contribute to the study of evolution? a. population genetics b....

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Concept explainers

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth. Human evolution is an outcome of interaction among the following processes:

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1. What could be the possible roles of genetic drift in human evolution? Discuss it thoroughly and present possible evidences for these roles.

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1. What could be the possible roles of genetic drift in human evolution? Discuss it and show possible evidences for each role. Do not just copy it from somewhere, please.
1. How does genetic drift affect human evolution? Discuss it and present possible evidences. Do no just copy from somewhere, please.
1. Does genetic drift affect natural selection? Yes or No? Discuss and explain it thoroughly. Do not just copy it from somewhere, please.
1. Present possible evidences that genetic drift affect human population. Discuss this evidences comprehesively. Do not just copy from somewhere, I need evidences that shows that genetic drift has a role in human evolution. Thank you!
2. 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 processes. Some of these have to do with history; some are related to adaptation, etc. As completely as possible, discuss the role of chance and direction in evolution and in determining the phenotype of a population.
Which of the following does not contribute to the study of evolution? a. population genetics b. inheritance of acquired characteristics c. the fossil record d. DNA sequencing e. comparative morphology
Which statement about analogies is correct? They occur only as errors They are synonymous with homologous traits. They are derived by similar environmental constraints. They are a form of mutation.
1. a) How does this experiment demonstrate the definition of evolution? b) Fitness of organisms is a function of the environment (that is, organisms best fit to the local environmental conditions leave more surviving offspring). How does this experiment demonstrate this fact?
1. Does genetic drift affect natural selection and does natural selection affect genetic drift. Explain it thoroughly and in an understable way. Do not just copy it from somewhere.
1. Why do you think it is necessary for there to be variation in a population in order for evolution by natural selection to occur? 2. Why is it necessary for traits to be inherited for evolution to take place? 3. If a population is already well adapted to its environment, will most mutations be helpful or harmful? Explain.
5. a. Is genetic drift a gain or loss in heterozygosity? b. What population is most effected by drift? Ne = 20 or Ne = 200. Why? c. There is a balancing act between drift and another force of evolution. What is it and why is this important?
4. Which of the following describes indirect evidences for evolution? a. consists of actual observation b. is actually observed or seen c. is something that does not involve actual observation of evolution but for which we can infer that evolution has taken place d. None of the above.