Give only typing answer with explanation and conclusion Identify the role of natural selection in the evolution of skin color. What role does folate and vitamin D have? How do they differ? How can someone maximize folate and vitamin D levels? Does natural selection still relate to skin color in human populations? If so, how would you expect human skin color to change in human populations in the future?

Give only typing answer with explanation and conclusion Identify the role of natural selection in the evolution of skin color. What role does folate and vitamin D have? How do they differ? How can someone maximize folate and vitamin D levels? Does natural selection still relate to skin color in human populations? If so, how would you expect human skin color to change in human populations in the future?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 16QP: Measuring Genetic Diversity in Human Populations How would a drastic reduction in a populations size...

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Give typing answer with explanation and conclusion It is often said that “an allele that results in fitness losses for both actor and recipient would quickly be eliminated by natural selection”. Explain.
Give typing answer with explanation and conclusion Which of the following statements is false? Question 5 options: A) When insect populations are attacked with pesticides, the populations increase their mutation rates so that they can develop pesticide-resistant alleles. B) Small populations have smaller gene pools than larger populations. C) The fittest members of a population leave more offspring than less-fit individuals. D) Natural selection is responsible for most adaptive changes in populations
Summarize how natural selection is the mechanism that produced a global cline of skin color. Your answer should include an explanation of therelationship between melanin, geography, UV radiation, folate, and vitamin D.
Give typing answer with explanation and conclusion Does modern medicine affect natural selection in the human species today? Explain
Give typing answer with explanation and conclusion Imagine a recessive autosomal genetic disorder that causes death before sexual maturity. Which of the following best helps explain why such alleles persist in populations for long periods of time? Group of answer choices A. This allele is not heritable. B. Some individuals with the allele have the same fitness as individuals without the allele. C. Because they die before sexual maturity, there is no heritable variation in this population. D. The mutation rate of this gene probably is very high, creating this recessive allele every generation
Measuring Genetic Diversity in Human Populations How would a drastic reduction in a populations size affect that populations gene pool?
Apply 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?
Give written answer with explanation and conclusion A population of rabbits may be brown (the dominant phenotype) or white (the recessive phenotype). Brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. The frequency of the BB genotype is 0.35. Assuming that this population is in Hardy-Weinberg equilibrium, what is the frequency of the B and b allele respectively?
Why is it that the evolution of skin color is considered a case of natural selection? Group of answer choices A- Because different alleles in skin color genes lead to differences in skin color B- Because differences in skin color lead to differences in number of children in different environments C- Both D- Neither
Based on everything that you have learned so far, provide an explanation for how the different shades of skin color from pinkish white to dark brown evolved throughout human history.
Which statement illustrates the connection between natural selection and overreproduction of a population? a) populations vary in their inherited traits. b) species produce more offspring than can survive in the environment. c) individuals with inherited traits that promote survival tend to have more surviving offspring. d) individuals with traits that do not enhance survival cannot reproduce.
A. Explain which force of evolution is seen here by a hybrid bird landing on an island that is not its home and breeding with the indigenous population. B. Explain which force of evolution randomly chooses an individual from a larger gene pool to form a new, smaller population with less genetic variety.