The maintenance of sexual reproduction in populations is a challenge for evolutionary biologists. Explain the paradox of sex and identify reasons that sex is prominent in natural populations.
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Q: explain how meiosis and sexual reproduction generate genetic variability in populations?
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Q: Sexual reproduction introduces new alleles to a population. True False
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Q: Understand the examples of species with sex-role reversal.
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Q: description of the 2 different types of sexual selection
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- The maintenance of sexual reproduction in populations is a challenge for evolutionary biologists. Explain the paradox of sex and identify reasons that sex is prominent in natural populations.
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Solved in 3 steps
- Enumerate and give at least 5 unique mechanisms employed by organisms in order to determine the sex of the offspring. In each case, give an example of a species which represent such a scheme of producing sex(y) descendants. Put reference Mechanism Example 1 2 3 4 5 What evolutionary forces drive the turnover of these sex determination mechanisms?give one species that is classified or exhibit the following: sex-role reversal show a photograph of it with its sexual traits (body stuctures, behavior, etc) and how these traits help their reproduction. explainWhat determines whether a gamete is male or female? Explain why this difference predicts the two main forms of sexual selection.
- Which of the following is an advantage of sexually reproducing populations over asexually reproducing populations? A. Sexually reproducing populations produce genetically identical offspring. B. Sexually reproducing populations require partners to reproduce. C. Sexually reproducing populations are more resilient against the effects of harmful mutations. D. Sexually reproducing populations do not require partners to reproduce.The continuity is based on heritable information in the form of DNA. Explain how chromosome behavior during sexual reproduction in animals ensures perpetuation of parental traits in offspring and at the same time, genetic variation among offspring.Explain how sexual selection might lead to a)sexual dimorphism and b) members of one sex (usually male) having traits that do not enhance their survival
- What are the Equality in the Sexes in Human Evolution? Why is this important to learn?Provide three different examples of how female choice has influenced the evolution of a species. At least one should be an example form humans or closely related primates.Use evolutionary theory to explain thedifference in longevity of women in matriarchal and patriachal tribes.Both tribes live in similar ecological conditions and have very similar food habits and lifestyles. How would you test if this explanation is correct?
- Describe thoroughly the selective advantages and disadvantages organisms that reproduce sexually have over those that reproduce asexually, as well as the ramifications of mate choice on the traits present in species. The following questions could help answer the question above. What are the advantages of sexual reproduction? What are the disadvantages? How do traits selected by sexual selection and those selected by differential survival mix in an animal species? i.e. is it more important to mate or survive? Use specific examples to illustrate your point. Your answers should indicate an understanding of the mechanism behind natural selection. Propose a scenario where asexual reproduction would be favorable.In a short essay (at least 10 well-defined sentences) Identify and explain at least 3 evolutionary arguments theorizing the development of gender roles and gender difference. What are the specific drawbacks of all of each of those theories?Which of the following statements is an evolutionary advantage of sex and sexual reproduction? A. Sex and recombination results in decreased genetic variation in a population and maintains advantageous traits. B. Sex and recombination can bring beneficial alleles together when producing offspring. C. Sex and recombination results in the inheritance of all the genetic information available from both parents. D. Reproduction is less risky when gametes from two individuals must fuse.