Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 54, Problem 1S
Refer to figure 55.8. What are the implications for evolutionary divergence among populations that are pan of a metapopulation versus populations that are independent of other populations?
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Students have asked these similar questions
According to the Hardy-Weinberg law of equilibrium:
Question 1 options:
A)
In absence of mutation and natural selection, the frequencies of the genotypes will remain stable because no evolutionary change takes place.
B)
In absence of gene flow, the frequencies of the genotypes will remain stable because no evolutionary change takes place.
C)
In absence of genetic drift, the frequencies of the genotypes will remain stable because no evolutionary change takes place.
D)
All of the above.
E)
None of the above.
21)
ALL BUT ONE of the statements below helps to describe gene flow. That is
A)
B)
Without genetic variation, some of the basic mechanisms of evolutionary change cannot operate.
There are three primary sources of genetic variation:
1. Mutations
II. Gene flow
III. Sexual reproduction
D)
It depends on a chance event that changes the gene pool.
It can reduce the genetic differentiation between the two groups.
It involves the movement of alleles from one population to another.
It includes migration or the movement of individuals between populations.
Some mutations always occur from generation to generation. But most mutations do not persist over time in the gene
pool. Which mutation is MOST likely to become established and persist in a species?
Which of the following statements about sympatric speciation is correct?
It is a process through which two populations can diverge and develop reproductive isolation while in two different geographic area.
It is the most common mechanism for populations to form independent species.
Postzygotic isolation is the main form of reproductive isolation for the sympatric speciation process.
Genetic isolation through large scale chromosomal mutations, such as chromosome inversion or polyploidy, are more likely contributing to sympatric speciation.
None of the above
Chapter 54 Solutions
Biology
Ch. 54.1 - Prob. 1LOCh. 54.1 - Prob. 2LOCh. 54.1 - Explain how species adapt to environmental...Ch. 54.2 - Prob. 1LOCh. 54.2 - Prob. 2LOCh. 54.3 - Prob. 1LOCh. 54.3 - Prob. 2LOCh. 54.3 - Prob. 3LOCh. 54.4 - Prob. 1LOCh. 54.4 - Prob. 2LO
Ch. 54.5 - Prob. 1LOCh. 54.5 - Discuss why populations cannot grow exponentially...Ch. 54.5 - Define carrying capacity and explain what might...Ch. 54.6 - Prob. 1LOCh. 54.6 - Prob. 2LOCh. 54.6 - Prob. 3LOCh. 54.7 - Prob. 1LOCh. 54.7 - Prob. 2LOCh. 54.7 - Prob. 3LOCh. 54 - Prob. 1DACh. 54 - Prob. 2DACh. 54 - Prob. 3DACh. 54 - Prob. 4DACh. 54 - Prob. 5DACh. 54 - Prob. 6DACh. 54 - Prob. 1IQCh. 54 - Prob. 2IQCh. 54 - Prob. 3IQCh. 54 - Prob. 4IQCh. 54 - Prob. 5IQCh. 54 - Prob. 6IQCh. 54 - Prob. 7IQCh. 54 - Prob. 8IQCh. 54 - Suppose experimenters artificially kept the hare...Ch. 54 - Prob. 10IQCh. 54 - Prob. 11IQCh. 54 - Prob. 12IQCh. 54 - Source-sink metapopulations are distinct from...Ch. 54 - The potential for social interactions among...Ch. 54 - When ecologists talk about the cost of...Ch. 54 - Prob. 4UCh. 54 - The difference between exponential and logistic...Ch. 54 - Prob. 6UCh. 54 - Which of the following is an example of a...Ch. 54 - If the size of a population is reduced due to a...Ch. 54 - In populations subjected to high levels of...Ch. 54 - In a population in which individuals are uniformly...Ch. 54 - Prob. 4ACh. 54 - Refer to figure 55.8. What are the implications...Ch. 54 - Prob. 2SCh. 54 - Refer to figure 55.14. Because the number of...Ch. 54 - Refer to figure 55.26. Would increasing the mean...
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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
- Try to outline a scenario explaining the evolution of the three species shown in panel g. Use migration, mutation, genetic drift, selection, reproductive isolation, gene flow, extinction, and many generations in your scenario. Based on your scenario, what are the components that are necessary in a population in order for it to split or diverge into two new daughter species from a single ancestor (the parent species)?arrow_forwardhttps://learn.genetics.utah.edu/content/evolution/barriers/arrow_forwardIn the model shown below, discuss what kind of geographic barriers would have led to the finch speciation in the Galapagarrow_forward
- Over time, enough genetic variations can develop within a population to cause it to undergo speciation. Identify the various mechanisms that will prevent different species from being able to reproduce successfully. Which of these mechanisms is the most influential in keeping species sperate?arrow_forwardwould the heritability of human height in native Hawaiians different from the height of Lithuanians? 1) no since both of them are in different racial groups 2) yes since the genetic diversity and the environment influences are different in both groups 3) yes, the sample size in the study is not the same 4) no because heritability is homogenous across all subpopulations.arrow_forwardAnswer the following biology questions on evolutionarrow_forward
- From the below examples, all except 1 describe cases where a population would have evolved. Which of the following is the only case that does NOT describe a situation where the population is evolving? When individuals with a certain genotype have moved away from the population living in a particular area When individuals with certain genotypes have had more babies because their genotype is better adapted to the environment When individuals with a certain genotype have experienced phenotypic plasticity in an environment that changed in the area that they live in When individuals with a certain genotype were killed off by lightningarrow_forwardMuch attention is given to the existence of genetic variation in populations.Why do evolutionary biologists give so much attention to this? Explain mechanisms thatgenerate genetic variation in populations. Explain mechanisms that maintain geneticvariation in populations. Provide examples and dataarrow_forwardIn the experiment of stochastic events, what observations can you make regarding the gene pool and gene frequency of the founding individuals? What observations can you make about the genetic variation between the parent and founding populations? How does the source of the founding population (beaker 1 or beaker 2) influences these results? how will future generations from beaker 3 differ from those of their parent population?arrow_forward
- Consider the following example. In Alaska, different individuals of foxes can be brown, white, grey or black. In 2018, the population was 25% brown fur, 25% white fur, 25% grey fur and 25% black fur. The polar vortex in 2019 killed many of the foxes. When scientists measured the frequencies of foxes in 2023, they found that 50% were brown, 25% were white and 25% were black. Which force of evolution has occurred? A. Founder Effect B. Gene Flow C. Population Bottleneck D. Mutationarrow_forwardWhich of these options is NOT an example of a hypothesis that supports the occurrence of ecological speciation: ecologically divergent pairs of populations should be more reproductively isolated from one another than more ecologically similar pairs of populations traits that lead to divergent adaptations between populations should lead to reproductive isolation between those populations as well levels of gene flow between ecologically divergent populations should decrease as populations become more ecologically divergent ecologically divergent populations should differ in use of signals that relate to mate selectionarrow_forwardDiscuss the main application of the Hardy–Weinberg principle in evolutionary biology.arrow_forward
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