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- natural selection, why is maintaining genetic variation in populations such an important part of species being able to live through environmental changes? Include an exampleQuestion:- What is a plausible hypothesis that describes a possible mechanism to explain the differences between the forest and domestic forms in terms of their specific preferences for humans versus non-human animals. The hypothesis should describe a genetic (heritable) difference between the populations. Choose all that apply. Group of answer choices Mosquitoes have odor receptors for specific blood hosts Mosquitoes have specific behaviors tailored to their blood hosts Mosquitoes live in different environments Mosquitoes have different morphology to bite their prey Mosquitoes have different geneticsMeasuring Genetic Diversity in Human Populations Why is it that mutation, acting alone, has little effect on gene frequency?
- Genetic variation _______. (Choose an answer.) 1. is created by the direct action of natural selection. 2. arises in response to changes in the environment. 3. must be present in a population before natural selection can act upon the population.Artificial Selection• Explain how artificial selection is like natural selection.• Why are quail useful subjects for an experiment on selection? What other organisms share similar characteristics? Please be detailed as possibleNatural selection occurs only if there is both (1) variation in the genetic information between organisms in a population and (2) variation in the expression of that genetic information—that is, trait variation—that leads to differences in performance among individuals. What kind of variation might exist in bioluminescing organisms, and what differences in performance might result? (Remember, evolution is a consequence of the interaction of four factors: (1) the potential for a species to increase in number, (2) the genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for an environment’s limited supply of the resources that individuals need in order to survive and reproduce, and (4) the ensuing proliferation of those organisms that are better able to survive and reproduce in that environment.)
- Describe natural selection and give an example of natural selection at work in a population. Please elaborate or explain in 10-15 sentences, please?The Tibetans and Han Chinese share several genetic traits and DNA. However the EPAS1 gene which increases the ability of red blood cells carry oxygen even in low environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is commonly in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in 3-5 sentencesINSTRUCTION: - Answer the Question Properly - Do not copy in Google or here in Bartleby QUESTION: Human immunodeficiency virus entered human populations after evolving from a simian immunodeficiency virus. Nikolaas Tinbergen (1963) 1 proposed explaining shifts in traits from two perspectives: dynamic versus static, and proximate versus ultimate. This framework can be used to understand the evolution of a trait in four ways: (i) causation (proximate/static): the mechanism of the trait as it works in the present; (ii) survival value (ultimate/static): how function of the trait enhances survival or reproduction; (iii) ontogeny (proximate/dynamic): the development of the trait in an individual; and (iv) evolution (ultimate/dynamic): the phylogenetic history of the trait. Use these categories to discuss the causes for the virus shifting to humans from other primates.
- Revise the passage Darwin is best known for his Theory of Inheritance of Acquired Characteristics, first presented in 1801 (Darwin's first book dealing with natural selection was published in 1859):Based on these observations and inferences, Darwin concluded that these traits, called adaptations were the product of evolution by Acquired Traits, these traits made the members of the population who had them equally fit for survival. an organism could also change during their lifetime in order to adapt to its environment, those changes are passed on to its offspring. For example, darwin believed that if giraffes stretched their necks to reach food, Their offspring and later generations would inherit the resulting long necks.Measuring Genetic Diversity in Human Populations How would a drastic reduction in a populations size affect that populations gene pool?Need help.: Explain the similarities between Lamarckian and Darwinian evolution and how they differ with respect to how populations will change over time.