BIO 102 General Biology II Updated Edition (Tidewater Community College)
3rd Edition
ISBN: 9781259614064
Author: Tidewater Community College
Publisher: MCG CUSTOM
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Chapter 12, Problem 3WIO
How does variation arise in an asexually reproducing population? A sexually reproducing population?
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How can an asexually reproducing organism aftect the abundance of an individual in a population?
Does it make it difficult to define an individual in a population?
DEFEND YOUR ANSWER
Anisogamy is the term for sexual dimorphism in gamete size.
a) Discuss the evolution of anisogamy from an ancestor in which gametes had equal size. What factors would lead to a divergence in gamete size among members of a population?
b) Sexual selection can be strong in some species, and weaker in others. What determines the strength of sexual selection for a certain species? Discuss the differences in sex roles and Bateman’s Principle in your answer.
1) Many organisms have the ability to reproduce asexually as well as perform sexual reproduction.
A Scientist, John Smith, was conducting research on aphids that can undergo both methods of
reproduction. He determined the males in his population had fertilization rate of 1.8 and a relative
fitness of outcrossed offspring was 1.1.
a) What is the equilibrium frequency of males in this population?
b) Is this population stable equilibrium and why?
Chapter 12 Solutions
BIO 102 General Biology II Updated Edition (Tidewater Community College)
Ch. 12.1 - What are two ways to define evolution?Ch. 12.1 - Prob. 2MCCh. 12.2 - How does the history of evolutionary thought...Ch. 12.2 - What did Darwin observe that led him to develop...Ch. 12.2 - How might artificial selection and natural...Ch. 12.2 - What is the modern evolutionary synthesis?Ch. 12.3 - Prob. 1MCCh. 12.3 - Prob. 2MCCh. 12.3 - How can natural selection favor different...Ch. 12.3 - Prob. 4MC
Ch. 12.3 - Prob. 5MCCh. 12.4 - Prob. 1MCCh. 12.4 - Prob. 2MCCh. 12.4 - Prob. 3MCCh. 12.4 - Prob. 4MCCh. 12.5 - Prob. 1MCCh. 12.5 - Prob. 2MCCh. 12.6 - Prob. 1MCCh. 12.6 - What is the difference between intrasexual...Ch. 12.7 - Prob. 1MCCh. 12.7 - Prob. 2MCCh. 12.7 - Prob. 3MCCh. 12.7 - Prob. 4MCCh. 12.8 - What hypothesis did Conover and Munch test?Ch. 12.8 - Prob. 2MCCh. 12 - Prob. 1MCQCh. 12 - Prob. 2MCQCh. 12 - Prob. 3MCQCh. 12 - Prob. 4MCQCh. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - Prob. 7MCQCh. 12 - Prob. 8MCQCh. 12 - Prob. 9MCQCh. 12 - How did James Hutton, Georges Cuvier,...Ch. 12 - Explain how understanding evolution is important...Ch. 12 - How does variation arise in an asexually...Ch. 12 - Prob. 4WIOCh. 12 - Prob. 5WIOCh. 12 - Explain how harmful recessive alleles can persist...Ch. 12 - Fraggles are mythical, mouselike creatures that...Ch. 12 - Prob. 8WIOCh. 12 - Prob. 9WIOCh. 12 - Prob. 10WIOCh. 12 - Add the terms genotype, phenotype, allele...Ch. 12 - Prob. 3PIT
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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 does the Hardy Weinberg equation do? A) Show if a population is evolving B) Shows how many dominant alleles there are C) Does not work with asexual reproductionarrow_forwardADJUST Negative assortative mating means that organisms choose mates that are different from themselves. If negative assortive mating occurs in a population, what would expect to happen to genotype frequency over generations? O a) Frequency of the heterozygous genotype will increase. b) Frequency of the homozygous genotypes will decrease. O c) Frequency of the homozygous genotypes will increase. O d) Both A and B AUTO ||||||||| Cancel Revertarrow_forwardWhat is the difference between prezygotic and postzygotic reproductive isolating mechanisms? List some different types of each.arrow_forward
- What is meant by “alternation of generations”?arrow_forwardWhat is the Red Queen Dynamic? Using the snail example, explain why different parasite and host genotypes are expected to oscillate in frequency? Why would this favor sexual reproduction or outcrossing?arrow_forwardWhat is the “cost of males” in outcrossing reproducing species compared to obligate self-fertilizer or asexually reproducing species?arrow_forward
- How is the optimal reproductive strategy of a species produced over time by Natural Selection (assume that there is some phenotypic and genetic variance for reproductive strategies in a population)arrow_forwardWhat is a recombianation event?arrow_forwardWhat are the two groups of reproductive isolating mechanisms? Which of these is regarded as more efficient, and why?arrow_forward
- What is speciation continuum?arrow_forwardHow do nonrandom mating and gene flow disrupt Hardy– Weinberg equilibrium?arrow_forwardOf the males who survive to reproduce, let's say that males with the Ho+Ho+ and Ho+Hop genotype have on average 2.5 offspring, while HopHop males have on average 1 offspring. Taking into account both survival and reproduction, how many offspring do you expect each of the three male genotypes to contribute to the total population in the next generation? N(Ho+Ho+)= Enter your answer here N(Ho+Hop)= Enter your answer here N(HopHop) = Enter your answer here NTotal= Enter your answer herearrow_forward
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