Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 16, Problem 2RQ
Define equilibrium population. Outline the conditions that must be met for a population to stay in genetic equilibrium.
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Describe a situation in which a population would undergo the bottleneck effect and explain what impact that would have on the population’s gene pool.
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A-production of new alleles
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C-exchange of genes between populations
D-production of new genetic material
E-differential reproductive success of individuals
Give the major factors that cause changes in the genotype and allele frequencies of a population through generations. briefly explain each
Chapter 16 Solutions
Biology: Life on Earth (11th Edition)
Ch. 16 - The alleles responsible for antibiotic resistance...Ch. 16 - Stabilizing selection on a trait tends to a. make...Ch. 16 - An adaptation is any trait that arises from a...Ch. 16 - 4. Which of the following statements about...Ch. 16 - 5. Genetic drift occurs
a. when different...Ch. 16 - The ________ provides a simple mathematical model...Ch. 16 - 2. Different versions of the same gene are called...Ch. 16 - An organism's ________ refers to the specific...Ch. 16 - 4. A random form of evolution is called _________....Ch. 16 - Competition is most intense between members of...
Ch. 16 - 6. The evolutionary fitness of an organism is...Ch. 16 - 1. What is a gene pool? How would you determine...Ch. 16 - 2. Define equilibrium population. Outline the...Ch. 16 - How does population size affect the likelihood of...Ch. 16 - If you measured the allele frequencies of a gene...Ch. 16 - 5. People like to say that “you can’t prove a...Ch. 16 - 6. Describe the three ways in which natural...Ch. 16 - What is sexual selection? How is sexual selection...Ch. 16 - In North America, the average height of adult...Ch. 16 - By the 1940s, the whooping crane population had...
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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
- A difference in survival and reproduction among members of a population that vary in one or more traits is called ________.arrow_forwardDefine gene pool and population.arrow_forwardIf both mutation and drift are acting simultaneously, predict how this will influence variation in that population. Will variation increase, decrease, or be maintained at some equilibrium, etc.? (note: consider how mutation and drift each affect variation within a population).arrow_forward
- If a population has10 individuals with genotype AA, 20 with genotype Aa and 70 with genotype aa, what is the frequency of the a allele in the population? Group of answer choices A. 0.75 B. 0.90 C. 0.14 D. 0.70 E. 0.80arrow_forwardIf a population has 25 individuals with genotype AA, 20 with genotype Aa, and 5 with genotype aa, what is the allele frequency of a? Group of answer choices a. 0.4 b. 0.3 c. 0.2 d. 0.1 e.0.5arrow_forwardIf you measured the allele frequencies of a gene and found large differences from those predicted by the Hardy–Weinberg principle, would that prove that natural selection is occurring in the population you are studying? Review the conditions that lead to an equilibrium population, and explain your answer.arrow_forward
- Compare and contrast the effects of mutation, migration, genetic drift, and natural selection on genetic variation within populations and on genetic divergence between populations.arrow_forwardIn a population in Hardy-Weinberg equilibrium, if the starting frequency of the A1 allele is 0.5, after 500 generations it will be: Group of answer choices A- 0 b- 1 c- 0.5arrow_forwardPopulation and Quantitative Genetics. Assume the mean value for Trait A in Generation 0 is 0.5. Mean value for those individuals that reproduce in Generation 0 is 0.75. Selection differential, S is 0.25. Predicted response to selection, R is 0.143. What is the predicted mean trait value in Generation 1?arrow_forward
- You have a population of 100 individuals in HW equilibrium and there are two alleles at the T locus (T and t). If there are 36 individuals in the population with genotype tt, what is the expected frequency of the t allele under HW? Group of answer choices A. 0.36 B. 0.18 C. 0.5 D. 0.6 E. 0.72arrow_forwardThe hardy-Weinberg equilibrium acts as a/an (fill in the blank) to which we can compare the real-world populations to evaluate whether or not the population is (fill in the blank) fill in the blanks using the following terms: constant, control, hybridizing, speciating, evolving, or mechanismarrow_forwardFounder effects are most prominent in geographically, culturally or religiously isolated populations that undergo rapid expansion from a limited number of ancestors, when, as a consequence of low genetic diversity, some alleles become more frequent. True Falsearrow_forward
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